$ git clone -n https://src.fedoraproject.org/rpms/libdvdnav.git /var/lib/mock/f40-build-2293870-56230/root/chroot_tmpdir/scmroot/libdvdnav
Cloning into '/var/lib/mock/f40-build-2293870-56230/root/chroot_tmpdir/scmroot/libdvdnav'...
$ git fetch origin 6175a1ee318a507b820ecc4d3bb1c86112dc0ed2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdvdnav
 * [new ref]         6175a1ee318a507b820ecc4d3bb1c86112dc0ed2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6175a1e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild