Bad state: Future already completed

```
======== Exception caught by image resource service ================================================
The following StateError was thrown by an image listener:
Bad state: Future already completed

When the exception was thrown, this was the stack:
#1 _decodeImage. (package:flutter_cache_manager/src/cache_managers/image_cache_manager.dart:161:15)
#2 ImageStreamCompleter.setImage (package:flutter/src/painting/image_stream.dart:651:25)
#3 MultiFrameImageStreamCompleter._emitFrame (package:flutter/src/painting/image_stream.dart:992:5)
#4 MultiFrameImageStreamCompleter._handleAppFrame (package:flutter/src/painting/image_stream.dart:916:7)
#5 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1297:15)
#6 SchedulerBinding.handleBeginFrame. (package:flutter/src/scheduler/binding.dart:1149:11)
#7 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:625:13)
#8 SchedulerBinding.handleBeginFrame (package:flutter/src/scheduler/binding.dart:1147:17)
#9 _invoke1 (dart:ui/hooks.dart:186:13)
#10 PlatformDispatcher._beginFrame (dart:ui/platform_dispatcher.dart:379:5)
#11 _beginFrame (dart:ui/hooks.dart:129:31)
(elided one frame from dart:async)
====================================================================================================
```

Hi, after the latest update i get these errors when i try to load a lot of images in a gridview.builder, it was okay before update, errors are endless, even if you close the widget tree with images, it won't stop printing them