$ git clone -n https://src.fedoraproject.org/rpms/R-Rmpfr.git /var/lib/mock/f33-build-254745-50780/root/chroot_tmpdir/scmroot/R-Rmpfr
Cloning into '/var/lib/mock/f33-build-254745-50780/root/chroot_tmpdir/scmroot/R-Rmpfr'...
$ git reset --hard c40124266b3c9751f8580e8770329baa41a0d69c
HEAD is now at c401242 Remove old patch call.