Firefox / Combobox in window - selection list and scrollbar not in agreement

[mmayer]

Ext 6.0.2 / Firefox (tested version 45 & 47)
We have a window with a combobox in it. Can get into state where the combobox list has a scrollbar in the "wrong" position - or at least not consistent with the list items.

Using this fiddle: https://fiddle.sencha.com/#fiddle/1cie
Follow this procedure:
1. Click button to open window
2. In drop down, scroll down the list and pick item 14 or 15
3. Click X to close the window
4. Click button to open new window
5. Open drop down - the scroll bar is at the bottom, but the content is at the top. Moving the scrollbar does fix / sync the two up. See pic for the mis-aligned.


2016-06-23_15-04-58.png

[Gary Schlosberg]

Thanks for the report! I have opened a bug in our bug tracker.