Turning a swift card into a #card shouldn't delete+create a card but instead just change its content

[thiswillbeyourgithub]

Describe the bug
If I write a swift card, sync to anki, do a bunch of reviews, then a few days later realize that I should have instead used a #card tag, the review information of the card will be erased as the card will be erased. I think this shouldn't happen.

Expected behavior
The content of the anki card should change but it shouldn't be erased entirely.