Bug 256656 [FieldAssist] cancel auto activation of proposal popup when caret moved
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
/*
	 * Set the text content of the control to the specified text, setting the
	 * cursorPosition at the desired location within the new contents.
	 */
	private void setControlContent(String text, int cursorPosition) {
		if (isValid()) {
			
			watchModify = false;
			controlContentAdapter.setControlContents(control, text,
					cursorPosition);
		}
	}
	/*
	 * Insert the specified text into the control content, setting the
	 * cursorPosition at the desired location within the new contents.
	 */
	private void insertControlContent(String text, int cursorPosition) {
		if (isValid()) {
			
			watchModify = false;
			
			
			
			
			
			if (controlContentAdapter instanceof IControlContentAdapter2
					&& selectionRange.x != -1) {
				((IControlContentAdapter2) controlContentAdapter).setSelection(
						control, selectionRange);
			} else if (insertionPos != -1) {