$ git clone -n https://src.fedoraproject.org/rpms/diffpdf.git /var/lib/mock/f32-build-121445-37684/root/chroot_tmpdir/scmroot/diffpdf
Cloning into '/var/lib/mock/f32-build-121445-37684/root/chroot_tmpdir/scmroot/diffpdf'...
$ git reset --hard ce777987d771d6a734e1e766401b5e6940303ad9
HEAD is now at ce77798 Rebuild for poppler-0.84.0