$ git clone -n https://src.fedoraproject.org/rpms/thunar-vcs-plugin.git /var/lib/mock/f39-build-1465533-33592/root/chroot_tmpdir/scmroot/thunar-vcs-plugin
Cloning into '/var/lib/mock/f39-build-1465533-33592/root/chroot_tmpdir/scmroot/thunar-vcs-plugin'...
$ git fetch origin ef8ed3c7e5e44adfe326e06cba90101b6878b8e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/thunar-vcs-plugin
 * [new ref]         ef8ed3c7e5e44adfe326e06cba90101b6878b8e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef8ed3c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild