FSEditor: User how has problems pasting UTF-8 text

This is a report verbatim from my user

I am writing to report a change in how the editor behaves.                     ▒
This is not urgent, i just thought i would give a heads up.                    ▒
Formerly, when i pasted content containing UTF-8 encoded                       ▒
characters, the editor would translate them to ASCII                           ▒
"line noise."  Now it seems to interpret them as editor                        ░
commands and it rearranges the existing text.                                  ░
                                                                               ░
For example, the word Saute' where the "e'" represents the                     ░
Unicode character LATIN SMALL LETTER E WITH ACUTE, whose                       ░
UTF-8 encoding is 0xC3 0xA9.                                                   ░
                                                                               ░
Input text:        
  Saute' onions, celery, pepper, garlic, and spices in oil.                    ░
                                                                               ░
Old result:                                                                    ░
  Saut|- onions, celery, pepper, garlic, and spices in oil.                    ░
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New result:                                                                    ░
 onions, celery, pepper, garlic, and spices in oil.                            ▒
  Saut                                                                         ▒
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With longer texts, the rearrangement is more dramatic.         

This user is one of my biggest contributors so I'd like to make sure this gets fixed ASAP.