Martin's suggestion

Co-authored-by: Martin Thoma <info@martin-thoma.de>
pubpub-zz · Oct 16, 2022 · 9b756a9 · 9b756a9
1 parent 4e3478b
commit 9b756a9
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/PyPDF2/generic/_data_structures.py b/PyPDF2/generic/_data_structures.py
@@ -677,10 +677,11 @@ def _clone(
         """update the object from src"""
         self._data = cast("StreamObject", src)._data
         try:
-            if cast("StreamObject", src).decoded_self is None:
+            decoded_self = cast("StreamObject", src).decoded_self
+            if decoded_self is None:
                 self.decoded_self = None
             else:
-                self.decoded_self = cast("StreamObject", src).decoded_self.clone(pdf_dest, True, ignore_fields)  # type: ignore
+                self.decoded_self = decoded_self.clone(pdf_dest, True, ignore_fields)  # type: ignore[assignment]
         except Exception:
             pass
         super()._clone(src, pdf_dest, force_duplicate, ignore_fields)