Possible Duplicate:
Title edit plus minor body edit return 'too short' error
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Users gain the ability to edit only the tags of a question at 25% of the reputation needed to edit a post without restrictions, presumably allowing them to edit tags without being blocked by the "you must change 6 characters" filter.
But if such a user wants to edit only the title of a question, they can't, because they haven't changed enough characters in the body. If a question is well-formed with a misleading or unusual title, and someone wants to fix it, why tag them with a requirement to edit the question?
Should there be a "retitle" privilege that allows users without edit privileges to edit only the title of a question? Or should the 6-character check on the body be skipped if only the title is changed (and instead apply to the title, maybe)? The edit would still be peer reviewed and such.