Merge branch 'jc/set-head-symref-fix'

"git fetch" from a configured remote learned to update a missing remote-tracking HEAD but it asked the remote about their HEAD even when it did not need to, which has been corrected. Incidentally, this also corrects "git fetch --tags $URL" which was broken by the new feature in an unspecified way. * jc/set-head-symref-fix: fetch: do not ask for HEAD unnecessarily