[Bug]: waitNewTSafe does not wait

[congqixia]

Is there an existing issue for this?

• I have searched the existing issues

Environment

- Milvus version: 555912f
- Deployment mode(standalone or cluster): both
- SDK version(e.g. pymilvus v2.0.0rc2):
- OS(Ubuntu or CentOS): 
- CPU/Memory: 
- GPU: 
- Others:

Current Behavior

waitNewTSafe does not wait a new tsafe update. So querynode log will contain lots of unsolveMsg related infrmation

Expected Behavior

waitNewTSafe waits for ts update so doUnsolvedQueryMsg only operate only when ts updated

Steps To Reproduce

No response

Anything else?

This is caused by not resetting waiting Condition