# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 2015-09-24 07:46:37
# Node ID f46e7f3b70af84491fe802ca0487c18b23a0651d
# Parent  0ddaa2cab926ba07cc8ad3c896b26c80c6a7fbf9

largefiles: remove a mutable default argument

Mutable default arguments are know to the state of California to cause bugs.

diff --git a/hgext/largefiles/overrides.py b/hgext/largefiles/overrides.py
--- a/hgext/largefiles/overrides.py
+++ b/hgext/largefiles/overrides.py
@@ -617,8 +617,10 @@ def overridecopy(orig, ui, repo, pats, o
         wlock = repo.wlock()
 
         manifest = repo[None].manifest()
-        def overridematch(ctx, pats=(), opts={}, globbed=False,
+        def overridematch(ctx, pats=(), opts=None, globbed=False,
                 default='relpath', badfn=None):
+            if opts is None:
+                opts = {}
             newpats = []
             # The patterns were previously mangled to add the standin
             # directory; we need to remove that now