$ git clone -n https://src.fedoraproject.org/rpms/libdvdnav.git /var/lib/mock/f40-build-784359-133362/root/chroot_tmpdir/scmroot/libdvdnav
Cloning into '/var/lib/mock/f40-build-784359-133362/root/chroot_tmpdir/scmroot/libdvdnav'...
$ git fetch origin 55db79d31df8db39f37f06a6e82c8de86655c488:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdvdnav
 * [new ref]         55db79d31df8db39f37f06a6e82c8de86655c488 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55db79d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild