templater: do not strip non-quote characters from template config Before this patch, the first and last characters were stripped from ui.logtemplate and template.* if they were the same. It could lead to a strange result as quotes are optional. See the test for example.

rebase: fix crash when rebase aborts while rebasing obsolete revisions Before this patch, rebase --continue would crash when trying to resume a rebase of obsolete revisions whose successors were in the destination. This patch adds logic to recompute the mapping when rebase is resumed. This patch also adds a test that showcased the crash before the code change.

rebase: refactor of error handling code path for rebaseskipobsolete This patch extracts the error handling code path to go in a separate function. In the next patch we will able to reuse this logic and avoid duplicated code.