$ git clone -n https://src.fedoraproject.org/rpms/ibus-libpinyin.git /var/lib/mock/f40-build-2599576-63050/root/chroot_tmpdir/scmroot/ibus-libpinyin
Cloning into '/var/lib/mock/f40-build-2599576-63050/root/chroot_tmpdir/scmroot/ibus-libpinyin'...
$ git fetch origin e1734e6461b5bbcd003418d92c0ac9ec9bfef115:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ibus-libpinyin
 * [new ref]         e1734e6461b5bbcd003418d92c0ac9ec9bfef115 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1734e6 Update to 1.15.7