$ git clone -n https://src.fedoraproject.org/rpms/golang-github-ravenox-jsoncommentstrip.git /var/lib/mock/f40-build-752679-116818/root/chroot_tmpdir/scmroot/golang-github-ravenox-jsoncommentstrip
Cloning into '/var/lib/mock/f40-build-752679-116818/root/chroot_tmpdir/scmroot/golang-github-ravenox-jsoncommentstrip'...
$ git fetch origin 78312b95e024bdeff695bf17abeea7fa64493d52:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-ravenox-jsoncommentstrip
 * [new ref]         78312b95e024bdeff695bf17abeea7fa64493d52 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78312b9 Initial import