revert: makes interactive mode ask to forget added files (
issue4936)
Before this patch revert interactive mode unconditionally forgets
added files. This patch fixes this by asking user if he wants
to forget added file. If user doesn't want to forget given file,
it is added to matcher_opts exclude list, to not reviewing it
later with other modified files.
obsolete: fix n^2 marker computation behavior
Previously, if you ran obsolete.createmarkers with a bunch of markers that did
not have successors (like when you do a prune), it encountered a n^2 computation
behavior because the loop would read the changelog (to get ctx.parents()), then
add a marker, in a loop. Adding a marker invalidated the computehidden cache,
and reading the changelog recomputed it.
This resulted in pruning 150 commits taking 150+ seconds in a large repo.
The fix is to break the reading part of the loop to be separate from the writing
part.