$ git clone -n https://src.fedoraproject.org/rpms/golang-gitlab-ianbruene-kommandant.git /var/lib/mock/f41-build-1036540-18736/root/chroot_tmpdir/scmroot/golang-gitlab-ianbruene-kommandant
Cloning into '/var/lib/mock/f41-build-1036540-18736/root/chroot_tmpdir/scmroot/golang-gitlab-ianbruene-kommandant'...
$ git fetch origin 845fe06bf105810d1252e294e0ea172b88553b80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gitlab-ianbruene-kommandant
 * [new ref]         845fe06bf105810d1252e294e0ea172b88553b80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 845fe06 Fix FTBFS