redis vector Store,Failed to delete documents by filter

FilterExpressionBuilder b = new FilterExpressionBuilder();
redisVectorStore.delete(b.eq("docId", docId).build());
Bug description
[ERROR] - org.springframework.ai.vectorstore.redis.RedisVectorStore.doDelete(RedisVectorStore.java:332) - Failed to delete documents by filter
redis.clients.jedis.exceptions.JedisDataException: Syntax error at offset 44 near fe4458ec9835
at redis.clients.jedis.Protocol.processError(Protocol.java:105) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.Protocol.process(Protocol.java:162) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.Protocol.read(Protocol.java:221) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:351) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.Connection.getOne(Connection.java:333) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.Connection.executeCommand(Connection.java:138) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.executors.DefaultCommandExecutor.executeCommand(DefaultCommandExecutor.java:24) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.UnifiedJedis.executeCommand(UnifiedJedis.java:244) ~[jedis-5.0.2.jar:?]
at redis.clients.jedis.UnifiedJedis.ftSearch(UnifiedJedis.java:3666) ~[jedis-5.0.2.jar:?]
at org.springframework.ai.vectorstore.redis.RedisVectorStore.doDelete(RedisVectorStore.java:306) ~[spring-ai-redis-store-1.0.0-M6.jar:1.0.0-M6]
at org.springframework.ai.vectorstore.observation.AbstractObservationVectorStore.lambda$delete$5(AbstractObservationVectorStore.java:111) ~[spring-ai-core-1.0.0-M6.jar:1.0.0-M6]
at io.micrometer.observation.Observation.observe(Observation.java:499) ~[micrometer-observation-1.13.8.jar:1.13.8]
at org.springframework.ai.vectorstore.observation.AbstractObservationVectorStore.delete(AbstractObservationVectorStore.java:111) ~[spring-ai-core-1.0.0-M6.jar:1.0.0-M6]

When I use the following code to delete, it doesn't take effect and the data persists。

FilterExpressionBuilder b = new FilterExpressionBuilder();
redisVectorStore.delete(b.eq("userId", "1").build());

Environment
macos
spring ai m6

Start in RedisVectorStore.doDelete around RedisVectorStore.java lines 306 and 332, using the reported FilterExpressionBuilder examples to reproduce the Redis syntax error. Inspect how the filter is passed to ftSearch, then verify that deletion by docId or userId removes the matching data without the error.