$ git clone -n https://src.fedoraproject.org/rpms/kruler.git /var/lib/mock/f39-build-1677031-40954/root/chroot_tmpdir/scmroot/kruler
Cloning into '/var/lib/mock/f39-build-1677031-40954/root/chroot_tmpdir/scmroot/kruler'...
$ git fetch origin 4a499a12cd48176479ba9d704073d26574505a65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kruler
 * [new ref]         4a499a12cd48176479ba9d704073d26574505a65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a499a1 23.08.2