Dialog window stays behind dockable panel
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
On OS X, modal dialogs stay behind dockable panels when the dockable panel is not docked. Furthermore, because the dialog is modal, it is not possible to move the dockable panel making it very hard to get to the dialog. To reproduce, tear off the pipeline browser then bring up the preferences dialog. Move the dialog over the pipeline browser. It will always stay under the pipeline browser.