Merge pull request matplotlib#22280 from anntzer/fpc

Simplify FontProperties.copy().

Author: timhoffm

lib/matplotlib/font_manager.py

@@ -24,6 +24,7 @@
 #   - 'light' is an invalid weight value, remove it.
 
 from base64 import b64encode
+import copy
 import dataclasses
 from functools import lru_cache
 from io import BytesIO
@@ -964,9 +965,7 @@ def set_math_fontfamily(self, fontfamily):
 
     def copy(self):
         """Return a copy of self."""
-        new = type(self)()
-        vars(new).update(vars(self))
-        return new
+        return copy.copy(self)
 
 
 class _JSONEncoder(json.JSONEncoder):