$ git clone -n https://src.fedoraproject.org/rpms/sugar-imageviewer.git /var/lib/mock/f39-build-1520420-35829/root/chroot_tmpdir/scmroot/sugar-imageviewer
Cloning into '/var/lib/mock/f39-build-1520420-35829/root/chroot_tmpdir/scmroot/sugar-imageviewer'...
$ git fetch origin b8bc5983260aa20ee83cb17e80077c33213cfd27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sugar-imageviewer
 * [new ref]         b8bc5983260aa20ee83cb17e80077c33213cfd27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8bc598 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild