Questions about library overrides

I have a couple of questions regarding library overrides.

  1. Is there a way to call “Resync library override hierarchy” from Python yet? Right now it seems to be a context-sensitive operator in the outliner only.
  2. When resyncing library overrides my rigs tend to lose the link to their animation actions and reset to the default pose. I have to go back and re-add them in the Action Editor by hand. Is this the current expected behavior? Or is there another way to resync I should be using that keeps those links?