$ git clone -n https://src.fedoraproject.org/rpms/xfdesktop.git /var/lib/mock/f39-build-1562053-37418/root/chroot_tmpdir/scmroot/xfdesktop
Cloning into '/var/lib/mock/f39-build-1562053-37418/root/chroot_tmpdir/scmroot/xfdesktop'...
$ git fetch origin f71ad14a0fb964368d6da35ec4651f5778b67ac6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfdesktop
 * [new ref]         f71ad14a0fb964368d6da35ec4651f5778b67ac6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f71ad14 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild