Fix bug 653 - "Crash after calling QWizardPage.wizard()"

Reviewer: Renato Araújo <renato.filho@openbossa.org>
          Luciano Wolf <luciano.wolf@openbossa.org>

tests/QtGui/bug_653.py

@@ -0,0 +1,17 @@
+import unittest
+from PySide.QtCore import *
+from PySide.QtGui import *
+
+class TestBug653(unittest.TestCase):
+    """Crash after calling QWizardPage.wizard()"""
+    def testIt(self):
+        app = QApplication([])
+
+        wizard = QWizard()
+        page = QWizardPage()
+        wizard.addPage(page)
+        page.wizard() # crash here if the bug still exists due to a circular dependency
+        wizard.show()
+
+if __name__ == "__main__":
+    unittest.main()