FE: KC: Column filtering does not work consistently w/ multiple clusters

[yeikel]

Issue submitter TODO list

• I've looked up my issue in FAQ
• I've searched for an already existing issues here
• I've tried running main-labeled docker image and the issue still persists there
• I'm running a supported version of the application which is listed here

Describe the bug (actual behavior)

The Kafka Connect column filtering does not seem to work as expected when there are multiple clusters

Expected behavior

Filtering should work as expected

Your installation details

089b072

Steps to reproduce

1. Create more than one Kafka Connect cluster
2. Try to use the connector filtering to filter and filter for multiple of them

2025-07-11_18-22-04.mp4

Screenshots

See the included video instead

[fallen-up]

can't reproduce your problem in our installation, but we already use + #1165