$ git clone -n https://src.fedoraproject.org/rpms/toppler.git /var/lib/mock/f39-build-1635557-39858/root/chroot_tmpdir/scmroot/toppler
Cloning into '/var/lib/mock/f39-build-1635557-39858/root/chroot_tmpdir/scmroot/toppler'...
$ git fetch origin a723b2b33bb9b63c29dc0a02ef5d999ec1af7018:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/toppler
 * [new ref]         a723b2b33bb9b63c29dc0a02ef5d999ec1af7018 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a723b2b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild