Replacing a 'min:1' image with different extension

Hello,

In a files section with a min:1 option, If user uploads a .jpg image and then wants to change it with a .png image s/he cannot do it (as far as I can see).

This is because s/he cannot delete the image (as a minimum of 1 image is required) and s/he cannot replace the jpg image with a png either.

Is this expected, did I miss anything ?

Thank you

Yes, replacing is only possible using files with the same extension/mime type. Users can, however, still delete the file via the file view. Or you upload a second file and then remove the first (unless you have also set it to max: 1).