Bug 127289 [Markers] SystemFilter and group selection state not preserved
We are not preserving the selection state of the system filters or which group is selected.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/CategorySorter.java
.getSection(TableSorter.TAG_DIALOG_SECTION);
		if (settings == null) {
			settings = dialogSettings
					.addNewSection(TableSorter.TAG_DIALOG_SECTION);
		}
		String description = Util.EMPTY_STRING;
		if (categoryField != null) {
			description = categoryField.getDescription();
		}
		settings.put(TAG_FIELD, description);
	}
	/**
	 * Restore the state of the receiver from the dialog settings.
	 * 
	 * @param dialogSettings
	 * @param view
	 */
	public void restoreState(IDialogSettings dialogSettings, ProblemView view) {
		if (dialogSettings == null) {
			return;
		}
		IDialogSettings settings = dialogSettings
				.getSection(TableSorter.TAG_DIALOG_SECTION);
		if (settings == null) {
			return;
		}
		
	}
}