ComboBox:Allows Custom Value No Commit On Blur

Build 2812 on fix-placeholder-color
Reviewing disabled
Baseline History
Build 281244bb85f current baseline
Current build. Accepted by Andrey Yamanov.
Build 281140f1837
Ancestor build. There were unaccepted changes, so this was not used as a baseline.
Build 28076c2add3
Inherited baseline identical to build 2755
Build 27558edd72b
Accepted by Andrey Yamanov.
Build 2427e3bbd7e
Accepted by Andrey Yamanov.
Build 2295ac2074d
Accepted by Andrey Yamanov.
Build 22649e0f81c
Auto-accepted
Commenting is disabled because there's a newer build on this branch