$ git clone -n https://gitee.com/src-opencloudos-rpms/poppler-data.git /var/lib/mock/dist-oc8-build-74970-51865/root/chroot_tmpdir/scmroot/poppler-data
Cloning into '/var/lib/mock/dist-oc8-build-74970-51865/root/chroot_tmpdir/scmroot/poppler-data'...
$ git fetch origin 8069f80e953ec8e1637d20d0838b981f8f6b54b4:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/poppler-data
 * [new ref]         8069f80e953ec8e1637d20d0838b981f8f6b54b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8069f80 import poppler-data-0.4.9-2.tl3