$ git clone -n https://src.fedoraproject.org/rpms/golang-github-kalafut-imohash.git /var/lib/mock/f45-build-12142-439/root/chroot_tmpdir/scmroot/golang-github-kalafut-imohash
Cloning into '/var/lib/mock/f45-build-12142-439/root/chroot_tmpdir/scmroot/golang-github-kalafut-imohash'...
$ git fetch origin 31c959678f93dbdd166c84141a49845a5b26b7a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-kalafut-imohash
 * [new ref]         31c959678f93dbdd166c84141a49845a5b26b7a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31c9596 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild