Feature summary: When changing the visibility settings of an edit, it would be lovely to be able to suppress a portion (say, the revision text) and revision-delete a different portion (say, the edit summary).
Use case(s): Right now, if a component of an edit is a suppressed, any other component must be left either completely visible, or must also be suppressed. However, there are times in which a component of an edit meets the criteria for suppression (for example, a defamatory claim added to the text of a BLP article), whereas another component of that edit qualifies only for revision deletion (for example, a derogatory edit summary). As it stands, we are left with the option of not revision-deleting that component at all, or applying stricter visibility settings than are really appropriate.
Benefits: This would allow oversighters to more carefully adhere to policy by only suppressing what absolutely must be suppressed, and leaving other components that should be revision-deleted with the more appropriate visibility setting.