$ git clone -n https://gitee.com/src-opencloudos-rpms/mailx.git /var/lib/mock/dist-oc8-build-252590-84209/root/chroot_tmpdir/scmroot/mailx
Cloning into '/var/lib/mock/dist-oc8-build-252590-84209/root/chroot_tmpdir/scmroot/mailx'...
$ git fetch origin 25109c0ecb7eefc2c337046820f8e7f3fef5437c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mailx
 * [new ref]         25109c0ecb7eefc2c337046820f8e7f3fef5437c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25109c0 import mailx-12.5-30.tl3