mercurial/ui.py

--- a/mercurial/ui.py	Tue Feb 21 18:20:12 2017 +0100
+++ b/mercurial/ui.py	Tue Feb 21 18:22:07 2017 +0100
@@ -128,8 +128,6 @@
     raise error.SignalInterrupt
 
 class ui(object):
-    # color mode: see mercurial/color.py for possible value
-    _colormode = None
     def __init__(self, src=None):
         """Create a fresh new ui object if no src given
 
@@ -157,6 +155,8 @@
         self.insecureconnections = False
         # Blocked time
         self.logblockedtimes = False
+        # color mode: see mercurial/color.py for possible value
+        self._colormode = None
 
         if src:
             self.fout = src.fout
@@ -173,6 +173,8 @@
             self.environ = src.environ
             self.callhooks = src.callhooks
             self.insecureconnections = src.insecureconnections
+            self._colormode = src._colormode
+
             self.fixconfig()
 
             self.httppasswordmgrdb = src.httppasswordmgrdb