This is related to this discussion: How to play these trills from Clementi's Sonatina in C Major on piano?
My question: is the FG at the end of AGAGFG part of the trill, or is it the one explicitly shown in the original score (blue circle) right after the trill note G? The image I'm attaching seems to have discrepancy. In Measure 3, that FG (orange cicle) seems to be the one in the original score (blue circle), which is consistent with Neil Meyer's first image in the previous discussion linked above. However, in Measure 25, there is no FG in the original score following the trill note G, but the trill is suggested to be played as before, AGAGFG (red circle). If the FG belonged to the trill of the G note, then one would play FG twice in Meausure 3: AGAGFG FG.
Could someone please clarify? (My Willard Palmer edition shows the same as the above from sheetmusic2print)