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1. Rightclick some table and choose "View Data". 2. Click "Insert a record." button. 3. Press Ctrl+0. 4. Click "Show SQL" button. 5. Click "Clear" button. Result: Error message about invalid data is shown. The same if click "Show SQL" button right after dialog is opened. There shouldn't be error message at least. instead of this there should be some informational message.
Fixed. http://hg.netbeans.org/dbdataview/rev/143a7c15fd0b
Verified with build 080707.