$ git clone -n https://gitee.com/wenyuzifang/python-psycopg2.git /var/lib/mock/dist-an23-build-481466-74252/root/chroot_tmpdir/scmroot/python-psycopg2
Cloning into '/var/lib/mock/dist-an23-build-481466-74252/root/chroot_tmpdir/scmroot/python-psycopg2'...
$ git fetch origin bbb3b01092da75952a38094f8be8f6ddc2499564:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/python-psycopg2
 * [new ref]         bbb3b01092da75952a38094f8be8f6ddc2499564 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbb3b01 Update code from upstream