Revert TreeStore and ListStore initializer replacements

Revert changes to Tree/ListStore where the __init__ overrides were replaced
with __new__ overrides which accept column types directly. The issue with
the change is sub-classes of these types can override __init__ themself
passing in their own column types to the super class. These sub-classes
expect the super class to handle column type setup via __init__ and hence
the change described is an API break. This reverts parts of commit:
2f2069c9efcd8f312ce9ffa572df371fbc08822d

1 files changed, 6 insertions, 4 deletions

diff --git a/gi/overrides/Gtk.py b/gi/overrides/Gtk.py
index 96802fbe..c0a90960 100644
--- a/gi/overrides/Gtk.py
+++ b/gi/overrides/Gtk.py
@@ -909,8 +909,9 @@ __all__.append('TreeModelSort')
 
 
 class ListStore(Gtk.ListStore, TreeModel, TreeSortable):
-    def __new__(self, *column_types):
-        return Gtk.ListStore.new(column_types)
+    def __init__(self, *column_types):
+        Gtk.ListStore.__init__(self)
+        self.set_column_types(column_types)
 
     def _do_insert(self, position, row):
         if row is not None:
@@ -1157,8 +1158,9 @@ __all__.append('TreePath')
 
 
 class TreeStore(Gtk.TreeStore, TreeModel, TreeSortable):
-    def __new__(self, *column_types):
-        return Gtk.TreeStore.new(column_types)
+    def __init__(self, *column_types):
+        Gtk.TreeStore.__init__(self)
+        self.set_column_types(column_types)
 
     def _do_insert(self, parent, position, row):
         if row is not None: