$ git clone -n https://gitee.com/src-opencloudos-rpms/poppler.git /var/lib/mock/dist-oc8-build-241701-82875/root/chroot_tmpdir/scmroot/poppler
Cloning into '/var/lib/mock/dist-oc8-build-241701-82875/root/chroot_tmpdir/scmroot/poppler'...
$ git fetch origin 14aec1206aec38cca402343b93072804861c0dc3:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/poppler
 * [new ref]         14aec1206aec38cca402343b93072804861c0dc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14aec12 import poppler-20.11.0-14.tl3