Bug 307163 DBCS3.6: Resource Filter UI didn't restore grouped filters
Build Identifier: I20100313-1044 When reopening Resource Filters property editor after adding several filters under either of top-level AND/OR/NOT group, none of children in such top-level group filter is shown while settings are actually persisted in .project. Reproducible: Always Steps to Reproduce: 1. Create a project and add some files and folders. 2. Add resource filters to the project or the folder just created, and filters are grouped by AND/OR/NOT. 3. Ensure filters are active for exiting resources under the project. 4. Reopen "Resource Fileters" property editor 5. Verify the filters added in Step 2 are restored. Problem: None of child filters under top-level AND/OR/NOT group is shown Expected: All nested child filters under top-level AND/OR/NOT group are totally shown. Note that persistent entries for all filters are actually existing in a .project file.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceFilterGroup.java
if (descriptor.getArgumentType().equals(
					IFilterMatcherDescriptor.ARGUMENT_TYPE_FILTER_MATCHERS))
				return Integer.MAX_VALUE;
		}
		return 0;
	}
	public boolean equals(Object o) {
		if (!(o instanceof FilterCopy))
			return false;
		FilterCopy filter = (FilterCopy) o;
		return serialNumber == filter.serialNumber;
	}
	public int getSerialNumber() {
		return serialNumber;
	}
	public FilterCopy findBySerialNumber(int number) {
		LinkedList pending = new LinkedList();
		pending.add(this);
		while (!pending.isEmpty()) {
			FilterCopy filter = (FilterCopy) pending.getFirst();
			pending.removeFirst();
			if (filter.serialNumber == number)
				return filter;
			FilterCopy[] tmp = filter.getChildren();
			if (tmp != null)
				pending.addAll(Arrays.asList(tmp));
		}
		return null;
	}
	public FilterCopy[] getChildren() {