ROB: Cope with garbage collector during cloning (py-pdf#1841)

Fixes py-pdf#1788

Author: pubpub-zz

pypdf/generic/_base.py

@@ -128,6 +128,7 @@ def _reference_clone(
         if ind is not None:
             if id(ind.pdf) not in pdf_dest._id_translated:
                 pdf_dest._id_translated[id(ind.pdf)] = {}
+                pdf_dest._id_translated[id(ind.pdf)]["PreventGC"] = ind.pdf  # type: ignore
             if (
                 not force_duplicate
                 and ind.idnum in pdf_dest._id_translated[id(ind.pdf)]