I have a form that has 2 Text-Autocomplete fields. If I start with an existing record where these fields are currently empty and enter just one of the fields the submit succeeds. If I then just change that field to another value and submit I get the ERROR message box with Invalid Data for that field, even though I entered valid data and echo'ing the data shows it to be correct. This is something that used to work fine and was broken within this month's (July 2012) updates.
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Text - Autocomplete get Invalid Data Error on submit