$ git clone -n https://src.fedoraproject.org/rpms/ibus-chewing.git /var/lib/mock/f41-build-855889-167429/root/chroot_tmpdir/scmroot/ibus-chewing
Cloning into '/var/lib/mock/f41-build-855889-167429/root/chroot_tmpdir/scmroot/ibus-chewing'...
$ git fetch origin 1e8176d54d0f869a219fbcb4d05724555f5f5c8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ibus-chewing
 * [new ref]         1e8176d54d0f869a219fbcb4d05724555f5f5c8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e8176d Update to 2.1.2