bug#14536: find-file asks for confirmation three times with ido

[Mario Valencia]

If I find-file, when using Ido, and input a non-existent filename, then press enter very fast, it will echo "searching for **filename** in the minibuffer", and show "[no match]", then i press enter a second time, then it asks for confirmation, then i press enter a third time and it creates the buffer. That is three enters to find a file, when it should only be two (one first, then one for confirmation). The bug only happens if I press the first enter fast, before it echoes "searching for _filename_".