Segfault on accessing some attributes with multiple inheritance
Submitted by HyperHacker
Created attachment 329333 Test case
Attached test case causes a segfault when accessing the attributes 'dummy', 'priv', 'qdata', or 'ref_count' of a class which inherits from Gtk.DrawingArea and is not yet initialized.
OS is Arch Linux AMD64, tested in Python 3.5.1.
Attachment 329333, "Test case":