$ git clone -n https://src.fedoraproject.org/rpms/merkaartor.git /var/lib/mock/f38-build-713974-94626/root/chroot_tmpdir/scmroot/merkaartor
Cloning into '/var/lib/mock/f38-build-713974-94626/root/chroot_tmpdir/scmroot/merkaartor'...
$ git fetch origin 98d3729cf0fe29de136df69d7c07c3436e3590e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/merkaartor
 * [new ref]         98d3729cf0fe29de136df69d7c07c3436e3590e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98d3729 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild