$ git clone -n https://src.fedoraproject.org/rpms/pcem.git /var/lib/mock/f39-build-1974590-43330/root/chroot_tmpdir/scmroot/pcem
Cloning into '/var/lib/mock/f39-build-1974590-43330/root/chroot_tmpdir/scmroot/pcem'...
$ git fetch origin 04a98902409f39c9dc49828317aa08e49c37c9bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcem
 * [new ref]         04a98902409f39c9dc49828317aa08e49c37c9bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04a9890 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild