$ git clone -n https://src.fedoraproject.org/rpms/povray.git /var/lib/mock/f38-build-side-42-init-devel-695540-26989/root/chroot_tmpdir/scmroot/povray
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-695540-26989/root/chroot_tmpdir/scmroot/povray'...
$ git fetch origin 6c65b86ad7a71edbd5842665f74b7f89f459a1eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/povray
 * [new ref]         6c65b86ad7a71edbd5842665f74b7f89f459a1eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c65b86 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild