Bug 161425 [Viewers] TableTreeViewer => EditingSupport broken
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TableTreeViewer.java
text = tprov.getColumnText(element, column);
				image = tprov.getColumnImage(element, column);
			} else {
				if (column == 0) {
					ViewerLabel updateLabel = new ViewerLabel(item.getText(),
							item.getImage());
					buildLabel(updateLabel, element);
					
					
					if (item.isDisposed()) {
						unmapElement(element, item);
						return;
					}
					text = updateLabel.getText();
					image = updateLabel.getImage();
				}
			}
			
			if (text == null) {
				text = ""; 
			}
			ti.setText(column, text);
			
			if (ti.getImage(column) != image) {
				ti.setImage(column, image);
			}
			getColorAndFontCollector().setFontsAndColors(element);
			getColorAndFontCollector().applyFontsAndColors(ti);
		}
	}