$ git clone -n https://src.fedoraproject.org/rpms/R-colorspace.git /var/lib/mock/f40-build-2031985-47658/root/chroot_tmpdir/scmroot/R-colorspace
Cloning into '/var/lib/mock/f40-build-2031985-47658/root/chroot_tmpdir/scmroot/R-colorspace'...
$ git fetch origin b2ebe13d36646a3251aaa125c93580fc0276c12b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-colorspace
 * [new ref]         b2ebe13d36646a3251aaa125c93580fc0276c12b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2ebe13 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild