$ git clone -n https://src.fedoraproject.org/rpms/psfex.git /var/lib/mock/f39-build-1967643-43303/root/chroot_tmpdir/scmroot/psfex
Cloning into '/var/lib/mock/f39-build-1967643-43303/root/chroot_tmpdir/scmroot/psfex'...
$ git fetch origin bd7a73a78f82777c0f2561681f244ec078b7be28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/psfex
 * [new ref]         bd7a73a78f82777c0f2561681f244ec078b7be28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd7a73a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild