Bug 256656 [FieldAssist] cancel auto activation of proposal popup when caret moved
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
if (triggerKeyStroke == null && watchModify) {
							if (DEBUG) {
								dump("Modify event triggers popup open or close", e); 
							}
							watchModify = false;
							
							 
							
							
							if (isControlContentEmpty()) {
								
								closeProposalPopup();
							} else {
								
								
								
								
								
								if (autoActivateString == null) {
									autoActivate();
								} else {
									
									
									
									
									if (!controlContentContainsAutoActivationCharacter())
										closeProposalPopup();
								}
							}
						}