Scrollable result list for long tree selects
1) What is your original issue/pain point you want to solve?
Tree select fields with many values render a result list that does not scroll properly and becomes hard to use.
2) Which are one or two concrete situations where this problem hurts the most?
Long category hierarchies or lookups with hundreds of entries — agents cannot reach values further down and the dropdown breaks the layout.
3) Why is it not solvable with the Zammad standard?
This is a rendering limitation of the field itself; no configuration changes it.
4) What is your expectation/what do you want to achieve?
Make the result/option list of (multi) tree selects scrollable so long value lists stay usable.
Ticket#10231017