$ git clone -n https://src.fedoraproject.org/rpms/R-qpdf.git /var/lib/mock/f33-build-278042-51680/root/chroot_tmpdir/scmroot/R-qpdf
Cloning into '/var/lib/mock/f33-build-278042-51680/root/chroot_tmpdir/scmroot/R-qpdf'...
$ git reset --hard b6280933a62ad89b937c79e806c449315d90442a
HEAD is now at b628093 rebuilt for qpdf-10.0.1