bundlerepo: properly handle hidden linkrev in filelog (issue4945) The bundlerepository have to do some special magic to handle linkrev of the bundlerepo filerev. That logic was done from a repoview and obsolescence marker affecting bundled changeset could lead to a crash. We now ensure we operate on unfiltered repository.

rebase: adds storing collapse message (issue4792) Before this patch collapse message wasn't stored so when you ran into the merge conflict while rebasing, running rebase --continue didn't remember the message and always opened editor to fill commit message. This patch adds saving collapse message in .hg/last-message.txt and restoring it later when needed.