BTW, I used your method of reattchment, re bisqued and then did the glaze fire. It held during the glaze fire although because of surface differences I needed to switch to an opaque glaze. It looks pretty good and I will use the method again if needed.
If a small piece needs to be re-attached before a final glaze - there are a few variable that make or break it for me.
I sometimes glue the piece on and then glaze it well around the attached part. If the attached part is going to fall off based on gravity - then it may do so in the kiln. If it's something like a knob on top of a lid, then gravity will keep it there regardless of the glue.
If the attached piece is on the side hanging off - it never works, if it's sitting on something it works.
Best of luck.