hg: backout optimizing for treemanifests
It turns out that the files list is not sufficient to identify with revlogs have
changed. In a merge commit, no files could've changed but directories would
have. For now let's just backout this optimization.
mercurial (__VERSION__) __CODENAME__; urgency=medium
* Automated build performed by upstream.
-- Mercurial Devel <mercurial-devel@mercurial-scm.org> __DATE__