prepush: backed out refactoring
It has some problems in corner cases and will fail on a test recently
introduced on stable. Will maybe be reintroduced later, in a better
version.
error: pretxncommit.nocommits hook failed: no commits allowed
transaction abort!
rollback completed
abort: no commits allowed
error: pretxncommit.nocommits hook failed: no commits allowed
transaction abort!
rollback completed
abort: no commits allowed