$ git clone -n https://gitee.com/fundawang/rpm.git /var/lib/mock/dist-an23-build-285699-64769/root/chroot_tmpdir/scmroot/rpm
Cloning into '/var/lib/mock/dist-an23-build-285699-64769/root/chroot_tmpdir/scmroot/rpm'...
$ git fetch origin 7a7a27988324072ef9e5065c8b25ad53fafddf8f:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/rpm
 * [new ref]         7a7a27988324072ef9e5065c8b25ad53fafddf8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a7a279 4.18.1