The only way to get rid of the warning is to Unlink the video from the audio and while still selected hit Group.
Of course! Makes sense! Thank you Ann!
I actually like the little "warning" flag, in case I use more of that source material, as I know how much I am likely going to need to adjust, but that is just me.
Good point Bill,
I guess to be safe if I don't want to be bothered by the warning and yet keep the source clip in sync I should duplicate the clip and keep the in-sync original while working with out-of-sync copy "marked in sync" in the way suggested by Ann, am I right?