Bug 132798 [Field Assist] - Pressing Backspace at offset 0 should not reload field assist popup
N20060322-0010. After migrating the Find/Replace dialog to the new field assist support I found the following blooper: pressing the Backspace key at offset 0 reloads the field assist popup. Test Case: 1. in a text editor press Ctrl+F 2. enable regex search 3. in the Find filed press Ctrl+Space 4. continuously press Backspace ==> each time the proposal list is reloaded.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
ArrayList list = new ArrayList();
			for (int i = 0; i < proposals.length; i++) {
				String string = getString(proposals[i]);
				if (string.length() >= filterString.length()
						&& string.substring(0, filterString.length())
								.equalsIgnoreCase(filterString)) {
					list.add(proposals[i]);
				}
			}
			return (IContentProposal[]) list.toArray(new IContentProposal[list
					.size()]);
		}
		Listener getTargetControlListener() {
			if (targetControlListener == null) {
				targetControlListener = new TargetControlListener();
			}
			return targetControlListener;
		}
	}
	/**
	 * Flag that controls the printing of debug info.
	 */
	public static final boolean DEBUG = false;
	/**
	 * Indicates that a chosen proposal should be inserted into the field.
	 */
	public static final int PROPOSAL_INSERT = 1;
	/**
	 * Indicates that a chosen proposal should replace the entire contents of
	 * the field.