$ git clone -n https://src.fedoraproject.org/rpms/nunit2.git /var/lib/mock/f39-build-1814542-41837/root/chroot_tmpdir/scmroot/nunit2
Cloning into '/var/lib/mock/f39-build-1814542-41837/root/chroot_tmpdir/scmroot/nunit2'...
$ git fetch origin b1b1499ece22e1d2c8abef2840c78a1807862dc5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nunit2
 * [new ref]         b1b1499ece22e1d2c8abef2840c78a1807862dc5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1b1499 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild