Fix namespace packages not getting fixed up when the eggs are zipped and

loaded late (i.e. via require).  Thanks to Walter Doerwald for the bug
report.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041208

pkg_resources.py

@@ -1429,8 +1429,8 @@ def _handle_ns(packageName, path_item):
     handler = _find_adapter(_namespace_handlers, importer)
     subpath = handler(importer,path_item,packageName,module)
     if subpath is not None:
-        module.__path__.append(subpath)
-        loader.load_module(packageName)
+        path = module.__path__; path.append(subpath)
+        loader.load_module(packageName); module.__path__ = path
     return subpath
 
 def declare_namespace(packageName):