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1. Open a Java source file and select any text. 2. Press ctrl-u then u to convert the selected text to uppercase. 3. Selected the same text or different text anywhere in the same file and convert it to uppercase. This time, and any time after the first conversion, only the character to the right of the selection is converted. 4. Close the file and reopen it and the same thing happens - the text is converted properly the first time, but each subsequent conversion only converts the character to the right. 5. Switch to another file and you will get the same results. The same events happen when converting text to lowercase or toggling the case.
This is already filed as issue 135732. Thanks for your report anyway *** This issue has been marked as a duplicate of 135732 ***