$ git clone -n https://src.fedoraproject.org/rpms/libpinyin.git /var/lib/mock/f45-build-16974-494/root/chroot_tmpdir/scmroot/libpinyin
Cloning into '/var/lib/mock/f45-build-16974-494/root/chroot_tmpdir/scmroot/libpinyin'...
$ git fetch origin 8e9052286b012a2c6ea295b6f047d82ab215c7f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libpinyin
 * [new ref]         8e9052286b012a2c6ea295b6f047d82ab215c7f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e90522 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild