Bug ID: 62049
           Summary: Abuse filters can be fooled by using U+200B ZERO WIDTH
                    SPACE (ccnorm doesn't remove/normalize them)
           Product: MediaWiki extensions
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: Unprioritized
         Component: AntiSpoof
       Web browser: ---
   Mobile Platform: ---

As you can check on
where the first string has just 3 characters and the second one has a few
invisible characters inside it.

Therefore, anyone can fool abuse filters which try to avoid ofenses, badwords,
etc.. by just copying invisible characters in the text.

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