#199 Duplicate images in a gallery

[Cameron Booth]

Hey man...

I was able to add multiple copies of the same image to
a gallery, simply by:

1. adding the image
2. reloading the page (it submits the form again,
adding the same image again.

This isn't a huge problem, but it's a bit worse when
it's compounded with the fact that:

When you have a gallery with mutiple copies of the same
image in it, and you choose to delete 1 of those
copies, it deletes both anyways.

We should, at some point, either stop allowing multiple
copies to go in, or, if you do allow multiple copies,
then the delete shoudl only delete the ones chosen.

Cam

[darcy w. christ]

Logged In: YES
user_id=20160

that's probably a good option for this particular bug. the
easiest is to prevent duplicates. it's very difficult for
me to get rid or singles, since there is no uniqueId for
duplicates.