Update Form dropping existing photo link
OK, I know I'm missing something simple here. I've been through the process twice, and cross referenced this with another form that is working, but still can't find the flaw. My update form works fine to change a photo with a new upload, but if you don't select a new photo, but update other info on the page and then submit the form, it drops the image field and therefore the photo link.
Apparently I can't attach a php file.
Is there something common I should be looking for?