$ git clone -n https://git.cclinux.org/stage/rpms/poppler.git /var/lib/mock/dist-circle8-build-112767-71416/root/chroot_tmpdir/scmroot/poppler
Cloning into '/var/lib/mock/dist-circle8-build-112767-71416/root/chroot_tmpdir/scmroot/poppler'...
$ git fetch origin e4936888453b64538b70187d5da979ec4ff5ed5f:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/poppler
 * [new ref]         e4936888453b64538b70187d5da979ec4ff5ed5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e493688 import poppler-20.11.0-11.el8