inotify: inotify.server.walkrepodirs() simplify walking
Do not 'yield tuple, boolean' to filter later on the boolean.
Test the boolean first, and yield tuple only if needed.
#!/bin/sh
hg init
echo a > a
hg ci -Am t
hg mv a b
hg ci -Am t1
hg debugrename b
hg mv b a
hg ci -Am t2
hg debugrename a
echo % test with --rev
hg debugrename --rev 1 b