What does this undocumented error message in _internal mean?

[gesa_behrens]

Since our last update to 8.2.2.1 the index _internal contains lots of ERROR messages where we cannot get any information about it's meaning:

ERROR ILightWeightSearchStringParser [4392 SchedulerThread] - still in inQueto=true

Does anybody know this message and can give some information about it?

Thanks

[ursfischer]

Hi there, we have almost the same here in our Platform: "ERROR ILightWeightSearchStringParser [18851 TcpChannelThread] - still in inQueto=true". Any Ideas what this can be?

[pablobarquin]

We have the same situation with version 8.2.8

Any idea about the root cause?

Thanks!