$ git clone -n https://gitee.com/scott-wong/nginx.git /var/lib/mock/dist-an7_9-updates-build-331172-69500/root/chroot_tmpdir/scmroot/nginx
Cloning into '/var/lib/mock/dist-an7_9-updates-build-331172-69500/root/chroot_tmpdir/scmroot/nginx'...
$ git fetch origin a13ed7f5ed5bebdc0b9217ffafb75ab69f835a84:KOJI_FETCH_HEAD
From https://gitee.com/scott-wong/nginx
 * [new ref]           a13ed7f5ed5bebdc0b9217ffafb75ab69f835a84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a13ed7f5 QUIC: improved packet and frames debug tracing.