$ git clone -n https://src.fedoraproject.org/rpms/kgamma.git /var/lib/mock/f41-build-1185368-22044/root/chroot_tmpdir/scmroot/kgamma
Cloning into '/var/lib/mock/f41-build-1185368-22044/root/chroot_tmpdir/scmroot/kgamma'...
$ git fetch origin e406b08b769e445f01c932dd9efd85fdd612ff9a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kgamma
 * [new ref]         e406b08b769e445f01c932dd9efd85fdd612ff9a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e406b08 feat: 6.1.1