Allow forced render mode for restore operations

Allows clients to progressively rerender in a depth-first manner. This minimizes the amount of time that the UI is in an indeterminate state for cases like a mismatched version.

The assumption here is that the number of differences between any given version will be relatively small so the perceived flux between a depth-first rerender and attempting to rerender from the root will be much lower.
Stupid words. This should be something along the lines of "for cases that need to apply DOM changes after any potential render options." Will update.