$ git clone -n https://src.fedoraproject.org/rpms/pdfpc.git /var/lib/mock/f31-build-90180-32176/root/chroot_tmpdir/scmroot/pdfpc
Cloning into '/var/lib/mock/f31-build-90180-32176/root/chroot_tmpdir/scmroot/pdfpc'...
$ git reset --hard d8c95254656f644e9388f6d003a5971a19aa3f29
HEAD is now at d8c9525 Fix FTBFS