Incorrect display of crops for an updated picture.

Hello.

This issue is a connexion between the Image javascript crop and media update modules.

Image javascrip crop issue can be found here http://drupal.org/node/1370908

I recently tested both the media update and image javascript crop and found out an unwanted behavior:

The crops of the original image are kept, causing incorrect display of the new picture (unless the user create new crops using the updated picture)

The correct behavior would be to erase the existing crops if the original image file is updated.

Using:
media update 7.x-1.x-dev
media 7.x-1.x-dev
Image javascript crop 7.x-1.0-rc3

Since I don't know witch module could solve this issue easier, I'm posting an issue on both module, have a great day!