$ git clone -n https://src.fedoraproject.org/rpms/langpacks.git /var/lib/mock/f45-build-15604-477/root/chroot_tmpdir/scmroot/langpacks
Cloning into '/var/lib/mock/f45-build-15604-477/root/chroot_tmpdir/scmroot/langpacks'...
$ git fetch origin 7d7d5d5daa9f0f96a2dde8505db956994752a28a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/langpacks
 * [new ref]         7d7d5d5daa9f0f96a2dde8505db956994752a28a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d7d5d5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild