$ git clone -n https://src.fedoraproject.org/rpms/fstrm.git /var/lib/mock/f40-build-2438048-60873/root/chroot_tmpdir/scmroot/fstrm
Cloning into '/var/lib/mock/f40-build-2438048-60873/root/chroot_tmpdir/scmroot/fstrm'...
$ git fetch origin 66e551185224b90c7c81ddecdd2f09a828bd7628:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fstrm
 * [new ref]         66e551185224b90c7c81ddecdd2f09a828bd7628 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66e5511 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild