I have committed code that automatically refreshes when it detects changes outside the spell checker, when you click on change word. Note that the change detection is not 100% robust. It will work if you edit the text manually, but if you run some automated tool like beautify or whatever, all bets are off.
@BR: As AnotherCat says, when I come across word groups that need manual editing I either leave them for the end or hit refresh after editing so that the spell checker is updated before proceeding. I suppose for me that's natural, since I know how the spell checker works internally
