Summary:
Trivial.
Before that we didn't have a way to get a root node from a Tree object.
It's useful during debugging (and some coming changes use that).
Reviewed By: mdvacca
Differential Revision: D16342529
fbshipit-source-id: 27c7516f3b3fccc8d8b25d4d2748006f7958ae41
Summary:
We suspect that we have some error in diffing algorithm that cause some crashes in mounting layer, so we decided to write a comprehensive unit tests for that.
Writing them we realized that it would be cool to also enable that for normal app run in the debug more, so we can catch the problem in real environment when/if it happens.
Reviewed By: mdvacca
Differential Revision: D14587123
fbshipit-source-id: 6dcdf451b39489dec751cd6787de33f3b8ffb3fd
Valentin Shergin