Changed virtual_function to use a function cache that already exists.

Author: CookStar

Diff for: addons/source-python/packages/source-python/memory/manager.py

@@ -637,6 +637,11 @@ def fget(ptr):
                     args,
                     return_type
                 )
+                for func_cache in funcs.values():
+                    if func_cache == func:
+                        func = func_cache
+                        break
+
                 funcs[address] = func
 
             # Wrap it using MemberFunction, so we don't have to pass the this