$ git clone -n https://src.fedoraproject.org/rpms/libslirp.git /var/lib/mock/f40-build-781556-131682/root/chroot_tmpdir/scmroot/libslirp
Cloning into '/var/lib/mock/f40-build-781556-131682/root/chroot_tmpdir/scmroot/libslirp'...
$ git fetch origin 53905f63fdfbc2becfdb58505960f97df56346e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libslirp
 * [new ref]         53905f63fdfbc2becfdb58505960f97df56346e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53905f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild