bookmarks: fix _bookmarks/lookup() reentrancy issue (issue2016)
_bookmarks is loaded lazily and calls super.lookup(). Unfortunately, branch and
tags caches initializations also recurse in lookup() and end up trying to
access _bookmarks again. Massive confusion ensues.
I considered fixing all branches and tags cache loading to avoid recursing in
lookup() but it would add complexity to otherwise working code provided lookups
are performed on nodes or revnums.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.