Bug 339347 [Markers] Can't toggle item limits in Problems view any more without losing limit
I20110308-2000 I can't toggle item limits in Problems view any more without losing limits. After I've disabled the limits, the next time I enable limits, the value is "1". The stored value should not be changed.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/FiltersConfigurationDialog.java
}
		if (selectedGroup != null) {
			return new StructuredSelection(selectedGroup);
		}
		return StructuredSelection.EMPTY;
	}
	/**
	 * Make a working copy of the groups.
	 * 
	 * @param groups
	 * @return Collection of MarkerFieldFilterGroup
	 */
	private Collection makeWorkingCopy(Collection groups) {
		Iterator initialFiltersIterator = groups.iterator();
		Collection returnFilters = new ArrayList(groups.size());
		while (initialFiltersIterator.hasNext()) {
			MarkerFieldFilterGroup group = (MarkerFieldFilterGroup) initialFiltersIterator
					.next();
			MarkerFieldFilterGroup copy = group.makeWorkingCopy();
			if (copy != null)
				returnFilters.add(copy);
		}
		return returnFilters;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.Dialog#okPressed()
	 */
	protected void okPressed() {