Explicitly build connectivity for board after loading in QA

qa/pcbnew/board_test_utils.cpp

@@ -91,6 +91,8 @@ void LoadBoard( SETTINGS_MANAGER& aSettingsManager, const wxString& aRelPath,
         m_DRCEngine->InitEngine( wxFileName() );
 
     aBoard->GetDesignSettings().m_DRCEngine = m_DRCEngine;
+
+    aBoard->BuildConnectivity();
 }
 
 
@@ -113,4 +115,4 @@ void FillZones( BOARD* m_board, int aFillVersion )
 }
 
 
-} // namespace KI_TEST
+} // namespace KI_TEST