$ git clone -n https://src.fedoraproject.org/rpms/R-rematch /var/lib/mock/f39-build-1596158-38353/root/chroot_tmpdir/scmroot/R-rematch
Cloning into '/var/lib/mock/f39-build-1596158-38353/root/chroot_tmpdir/scmroot/R-rematch'...
$ git fetch origin 260d2479117086578b4829d601b47287d0d55eb9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-rematch
 * [new ref]         260d2479117086578b4829d601b47287d0d55eb9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 260d247 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild