public void notifyListeners() {
			ChangeEvent event = new ChangeEvent(this);
			for (ChangeListener backgroundListener : backgroundListenerList) {
				backgroundListener.stateChanged(event);
			}
		}
Remove the result program's listing model as a listener to the result program for domain
object events.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/tool/ListingMergePanel.java