Issue #25447: Copying the lru_cache() wrapper object now always works,

independedly from the type of the wrapped object (by returning the original
object unchanged).

diff --cc Misc/NEWS
index e7952348c4e02589775df94772ccd11d3da7db93,bb0e0568f5d02b46721759af2b65797ca7df55a3..4a5a71e099b1dda17d30df4d0257dc93b6d951a8
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -123,9 -36,10 +123,13 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #25447: Copying the lru_cache() wrapper object now always works,
+   independedly from the type of the wrapped object (by returning the original
+   object unchanged).
+ 
 +- Issue #25768: Have the functions in compileall return booleans instead of
 +  ints and add proper documentation and tests for the return values.
 +
  - Issue #24103: Fixed possible use after free in ElementTree.XMLPullParser.
  
  - Issue #25860: os.fwalk() no longer skips remaining directories when error