Redraw the Differential keyboard reticle after collapsing/un-collapsing an inline
Summary: Ref T12634. Fixes T10049. Toggling an inline currently leaves the reticle oddly-positioned.
Test Plan:
- Selected a comment with the keyboard.
- Collapsed it.
- Saw reticle behave reasonably.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T12634, T10049
Differential Revision: https://secure.phabricator.com/D17903