$ git clone -n https://gitee.com/opencloudos-stream/mailcap.git /var/lib/mock/dist-ocs23-build-26237-1191/root/chroot_tmpdir/scmroot/mailcap
Cloning into '/var/lib/mock/dist-ocs23-build-26237-1191/root/chroot_tmpdir/scmroot/mailcap'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mailcap
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12a7991 update