$ git clone -n https://gitee.com/src-opencloudos-rpms/poppler.git /var/lib/mock/dist-oc8-build-100138-62902/root/chroot_tmpdir/scmroot/poppler
Cloning into '/var/lib/mock/dist-oc8-build-100138-62902/root/chroot_tmpdir/scmroot/poppler'...
$ git fetch origin 8ad928901eca1f517e941edf6a96ea725c16fe9e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/poppler
 * [new ref]         8ad928901eca1f517e941edf6a96ea725c16fe9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ad9289 import poppler-20.11.0-12.tl3