diff mercurial/localrepo.py @ 26323:ed884807dc48

tag: remove a mutable default argument

Mutable default arguments are know to the state of California to cause bugs. We
just added support of None for the underlying function, so nothing else the
required.

--- a/mercurial/localrepo.py	Thu Sep 24 00:56:18 2015 -0700
+++ b/mercurial/localrepo.py	Thu Sep 24 00:56:30 2015 -0700
@@ -540,7 +540,7 @@
         return hook.hook(self.ui, self, name, throw, **args)
 
     @unfilteredmethod
-    def _tag(self, names, node, message, local, user, date, extra={},
+    def _tag(self, names, node, message, local, user, date, extra=None,
              editor=False):
         if isinstance(names, str):
             names = (names,)