Maybe I shouldn't sweat this too much - since the displayed values can still be changed, but only from the drawing.... However, there is one field with a cross reference number that in the future may be populated by an EPDM to ERP link. I think the situation described above could prevent that from working correctly.
Not trying to complicate it, my primary question is either 1) how do you fix it for a specific drawing and model once it happens? (and the drawing was saved)
2) Is there a way to prevent this by changing the templates?
I should submit a bug report I guess.