$ git clone -n https://gitee.com/wenyuzifang/re2.git /var/lib/mock/dist-an23-build-466167-73955/root/chroot_tmpdir/scmroot/re2
Cloning into '/var/lib/mock/dist-an23-build-466167-73955/root/chroot_tmpdir/scmroot/re2'...
$ git fetch origin 0e419de0294c4a38a419e24b7f7936018f6fe485:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/re2
 * [new ref]         0e419de0294c4a38a419e24b7f7936018f6fe485 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e419de Update code from upstream