When loading up a Creative World generated in snapshot 14w25a and last loaded in snapshot 14w25a Item Frames containing Raw Fish or Cooked Fish spit out Item Frame and Fish entities onto the ground continuously at about 1 item per second. The issue is resolved when the world is exited and re-entered. Below is a link to a 00:01:25 video of the bug.
https://www.youtube.com/watch?v=p8Whoh725Kg&feature=youtu.be
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duplicates
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Duplicate of MC-45568