Your edit suggestion was made *after* someone else had made most of the same edit. [Revision number 2](http://stackoverflow.com/posts/13286266/revisions) clocked in at 10:00:24, and your [suggested edit](http://stackoverflow.com/review/suggested-edits/958337) was recorded at 10:00:35.

The system only recorded the difference between the second edit and yours, and that difference amounted to a minor edit.

A case of bad luck, I'm afraid!