Error on erase field

Error report: repeating javascript alert asking for confirmation of delete.

To reproduce error:

-create a new item
-under language or creator add a new input
-enter some text in the new input
-click on the red delete button for the new input field.

Result: you are asked for confirmation, it deletes the field in question when you click ok BUT it then repeatedly asks you for confirmation a few more times.

forgot to add: this is on Omeka 1.3, fresh install.