TextInputMapper:Within Form Input Sync

Build 3153 on feat-split-button
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Baseline History
Build 3153af68675
Current build. There are unaccepted changes, so build 3106 is still the baseline.
Build 3106ec9b86e current baseline
Accepted by Andrey Yamanov.
Build 3096e2e3cf4
Accepted by Andrey Yamanov.
Build 3056b6f41cc
Accepted by Andrey Yamanov.
Build 26186e0635a
Accepted by Andrey Yamanov.
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