Encoder exception for structure contains Iterable of KV

When doing group by and then sort, the sort should get this structure:

PCollection\>\>\>

However, for any SecondaryKeyT that I put I get coder exception:EOF, this happens for long and for string coders.

Happens in DataFlow runner.

Here is the full exception:
```

java.lang.IllegalStateException: Unable to decode tag list using WindowedValue$FullWindowedValueCoder(KvCoder(StringUtf8Coder,IterableCoder(KvCoder(StringUtf8Coder,com.moonactive.data.processor.beam.coders.JsonNodeCoder@20df8330))),IntervalWindow$IntervalWindowCoder)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.bagPageValues(WindmillStateReader.java:575)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.consumeBag(WindmillStateReader.java:597)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.consumeResponse(WindmillStateReader.java:504)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.startBatchAndBlock(WindmillStateReader.java:420)
org.apache.beam.runners.dataflow.worker.WindmillStateReader$WrappedFuture.get(WindmillStateReader.java:313)
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.Futures$2.get(Futures.java:542)
org.apache.beam.runners.dataflow.worker.WindmillStateInternals$WindmillBag.fetchData(WindmillStateInternals.java:503)
org.apache.beam.runners.dataflow.worker.WindmillStateInternals$WindmillBag.read(WindmillStateInternals.java:536)
org.apache.beam.runners.dataflow.worker.StreamingSideInputDoFnRunner.startBundle(StreamingSideInputDoFnRunner.java:60)
org.apache.beam.runners.dataflow.worker.SimpleParDoFn.reallyStartBundle(SimpleParDoFn.java:307) org.apache.beam.runners.dataflow.worker.SimpleParDoFn.startBundle(SimpleParDoFn.java:231)
org.apache.beam.runners.dataflow.worker.util.common.worker.ParDoOperation.start(ParDoOperation.java:36)
org.apache.beam.runners.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:77)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:1295)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.access$1000(StreamingDataflowWorker.java:149)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker$6.run(StreamingDataflowWorker.java:1028)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745) Caused by: org.apache.beam.sdk.coders.CoderException: java.io.EOFException
org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:104) org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:90)
org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:37) org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:81)
org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:76) org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:36)
org.apache.beam.sdk.coders.IterableLikeCoder.decode(IterableLikeCoder.java:124) org.apache.beam.sdk.coders.IterableLikeCoder.decode(IterableLikeCoder.java:60)
org.apache.beam.sdk.coders.Coder.decode(Coder.java:159) org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:82)
org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:36) org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.decode(WindowedValue.java:592)
org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.decode(WindowedValue.java:529) org.apache.beam.runners.dataflow.worker.WindmillStateReader.bagPageValues(WindmillStateReader.java:573)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.consumeBag(WindmillStateReader.java:597)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.consumeResponse(WindmillStateReader.java:504)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.startBatchAndBlock(WindmillStateReader.java:420)
org.apache.beam.runners.dataflow.worker.WindmillStateReader$WrappedFuture.get(WindmillStateReader.java:313)
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.Futures$2.get(Futures.java:542)
org.apache.beam.runners.dataflow.worker.WindmillStateInternals$WindmillBag.fetchData(WindmillStateInternals.java:503)
org.apache.beam.runners.dataflow.worker.WindmillStateInternals$WindmillBag.read(WindmillStateInternals.java:536)
org.apache.beam.runners.dataflow.worker.StreamingSideInputDoFnRunner.startBundle(StreamingSideInputDoFnRunner.java:60)
org.apache.beam.runners.dataflow.worker.SimpleParDoFn.reallyStartBundle(SimpleParDoFn.java:307) org.apache.beam.runners.dataflow.worker.SimpleParDoFn.startBundle(SimpleParDoFn.java:231)
org.apache.beam.runners.dataflow.worker.util.common.worker.ParDoOperation.start(ParDoOperation.java:36)
org.apache.beam.runners.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:77)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:1295)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.access$1000(StreamingDataflowWorker.java:149)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker$6.run(StreamingDataflowWorker.java:1028)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745) Caused by: java.io.EOFException org.apache.beam.sdk.util.VarInt.decodeLong(VarInt.java:73)
org.apache.beam.sdk.util.VarInt.decodeInt(VarInt.java:56) org.apache.beam.sdk.coders.StringUtf8Coder.readString(StringUtf8Coder.java:55)
org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:100) org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:90)
org.apache.beam.sdk.coders.StringUtf8Coder.decode(StringUtf8Coder.java:37) org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:81)
org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:76) org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:36)
org.apache.beam.sdk.coders.IterableLikeCoder.decode(IterableLikeCoder.java:124) org.apache.beam.sdk.coders.IterableLikeCoder.decode(IterableLikeCoder.java:60)
org.apache.beam.sdk.coders.Coder.decode(Coder.java:159) org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:82)
org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:36) org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.decode(WindowedValue.java:592)
org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.decode(WindowedValue.java:529) org.apache.beam.runners.dataflow.worker.WindmillStateReader.bagPageValues(WindmillStateReader.java:573)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.consumeBag(WindmillStateReader.java:597)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.consumeResponse(WindmillStateReader.java:504)
org.apache.beam.runners.dataflow.worker.WindmillStateReader.startBatchAndBlock(WindmillStateReader.java:420)
org.apache.beam.runners.dataflow.worker.WindmillStateReader$WrappedFuture.get(WindmillStateReader.java:313)
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.Futures$2.get(Futures.java:542)
org.apache.beam.runners.dataflow.worker.WindmillStateInternals$WindmillBag.fetchData(WindmillStateInternals.java:503)
org.apache.beam.runners.dataflow.worker.WindmillStateInternals$WindmillBag.read(WindmillStateInternals.java:536)
org.apache.beam.runners.dataflow.worker.StreamingSideInputDoFnRunner.startBundle(StreamingSideInputDoFnRunner.java:60)
org.apache.beam.runners.dataflow.worker.SimpleParDoFn.reallyStartBundle(SimpleParDoFn.java:307) org.apache.beam.runners.dataflow.worker.SimpleParDoFn.startBundle(SimpleParDoFn.java:231)
org.apache.beam.runners.dataflow.worker.util.common.worker.ParDoOperation.start(ParDoOperation.java:36)
org.apache.beam.runners.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:77)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:1295)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker.access$1000(StreamingDataflowWorker.java:149)
org.apache.beam.runners.dataflow.worker.StreamingDataflowWorker$6.run(StreamingDataflowWorker.java:1028)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745

```

Imported from Jira [BEAM-8109](https://issues.apache.org/jira/browse/BEAM-8109). Original Jira may contain additional context.
Reported by: brachi_packter.