$ git clone -n https://gitee.com/wency_cn/poppler_1770977358.git /var/lib/mock/dist-an23-build-514550-75110/root/chroot_tmpdir/scmroot/poppler_1770977358
Cloning into '/var/lib/mock/dist-an23-build-514550-75110/root/chroot_tmpdir/scmroot/poppler_1770977358'...
$ git fetch origin df81c3eb68931d19d3de1a1742d3c75371dda00e:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/poppler_1770977358
 * [new ref]         df81c3eb68931d19d3de1a1742d3c75371dda00e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df81c3e Update code from upstream