$ git clone -n https://src.fedoraproject.org/rpms/golang-github-ravenox-jsoncommentstrip.git /var/lib/mock/f45-build-12385-442/root/chroot_tmpdir/scmroot/golang-github-ravenox-jsoncommentstrip
Cloning into '/var/lib/mock/f45-build-12385-442/root/chroot_tmpdir/scmroot/golang-github-ravenox-jsoncommentstrip'...
$ git fetch origin b1d8f9cbaa18f37b547f15f7de65926d994f0c70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-ravenox-jsoncommentstrip
 * [new ref]         b1d8f9cbaa18f37b547f15f7de65926d994f0c70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1d8f9c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild