$ git clone -n https://src.fedoraproject.org/rpms/libfm.git /var/lib/mock/f39-build-1557886-37302/root/chroot_tmpdir/scmroot/libfm
Cloning into '/var/lib/mock/f39-build-1557886-37302/root/chroot_tmpdir/scmroot/libfm'...
$ git fetch origin a996d8ac658f33658f851f5d7d291afd064e801e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libfm
 * [new ref]         a996d8ac658f33658f851f5d7d291afd064e801e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a996d8a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild