Incremental/quick search bug, with non-default table layout

Description:
Incremental/quick search bug, with non-default table layout.

Step to reproduce:
1. Modify the default main frame table layout either by deleting/hiding or moving the column(s). For example: delete/hide "Completion" column. Or move "Service" column as 2nd column.
2. Restart FRD.
3. Try doing incremental/quick search. You'll get weird result/GUI interaction.

Expected behaviour:
Incremental search should work with non-default table layout.

Do you have an idea how to fix it?

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At this moment, no.

I took a peek at the code, the column indexes are constants. So maybe we can repopulate the indexes from "mainFrame.session.xml". But I haven't tried it. Maybe later

This bug is not FRD bug. I've tried some different scenarios, the reproducibility seemed random. Sometimes the bug happened, but with the same scenario it didn't happen (rarely).

Finally I found what caused this bug. It is window manager (Kwin) with desktop effects turned off. Somehow it interfered (Java) keyboard events. Not sure how those things related, I have no clue. So the solution in my case is: enable Kwin desktop effects.

Some people (including me) just like being "tortured" in Linux world. Yeah I know, bugs happen and all that

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