$ git clone -n https://src.fedoraproject.org/rpms/libXres.git /var/lib/mock/f45-build-15794-479/root/chroot_tmpdir/scmroot/libXres
Cloning into '/var/lib/mock/f45-build-15794-479/root/chroot_tmpdir/scmroot/libXres'...
$ git fetch origin 2203f38fb8f323147638cfa16c00d4b8919e567e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libXres
 * [new ref]         2203f38fb8f323147638cfa16c00d4b8919e567e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2203f38 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild