$ git clone -n https://gitee.com/mgb01105731/poppler_3.git /var/lib/mock/dist-an23-build-584468-96547/root/chroot_tmpdir/scmroot/poppler_3
Cloning into '/var/lib/mock/dist-an23-build-584468-96547/root/chroot_tmpdir/scmroot/poppler_3'...
$ git fetch origin e956c3dbeb56d872b189317d8c87568eeab747f1:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/poppler_3
 * [new ref]         e956c3dbeb56d872b189317d8c87568eeab747f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e956c3d Use upstream tar