$ git clone -n https://src.fedoraproject.org/rpms/langpacks.git /var/lib/mock/f42-build-3280234-41340/root/chroot_tmpdir/scmroot/langpacks
Cloning into '/var/lib/mock/f42-build-3280234-41340/root/chroot_tmpdir/scmroot/langpacks'...
$ git fetch origin 38f8a88be4958849f5df80c6c1b4c7e8713cf396:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/langpacks
 * [new ref]         38f8a88be4958849f5df80c6c1b4c7e8713cf396 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38f8a88 Recommend ibus-cangjie only on Fedora