inhibit: remove unused import The error module from mercurial was imported but unused in the inhibit code.

inhibit: improve handling of error cases for bookmark -D Before this patch bookmark -D was crashing in some cases like: hg book -Dmaster-fix. This was because -m is a valid option for hg bookmark. This patch disallows using -m with -D (moving and pruning does not make much sense) and throws an error instead of crashing if the command is malformed.

directaccess: fix case of shortened hash containing only digits For directaccess, there are four cases for what looks like short hashes made of digits only: 1 | the hash is a revision number and not a short hash for another revision: we don't change the visibility 2 | the hash is a revision number and a short hash for another revision: we don't change the visibility 3 | the hash is not a revision number and not a short hash for another revision: we don't change the visibility 4 | the hash is not a revision number but is a short hash for another revision: we make it visible Before the patch we were not lifting visibility in case number 4. This patch fixes the issue.

evolve: evolve --divergent failed when merge had nothing to do (issue4950) Before this patch, if the divergence resolution lead to an empty commit, the transaction would be rolled back and the divergence not resolved. This patch allows empty commits in that case. It is legitimate to end up with an empty commit in that case, for example when divergent commits differ over their commit messages.