$ git clone -n https://gitee.com/wency_cn/cups_1772045719.git /var/lib/mock/dist-an23-build-515014-75118/root/chroot_tmpdir/scmroot/cups_1772045719
Cloning into '/var/lib/mock/dist-an23-build-515014-75118/root/chroot_tmpdir/scmroot/cups_1772045719'...
$ git fetch origin 49705127e73cc29363481cd0ceaea8d1f849fe65:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/cups_1772045719
 * [new ref]         49705127e73cc29363481cd0ceaea8d1f849fe65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4970512 Update code from upstream