When I type a reply to a comment on Stack Overflow for a specific user and I start typing his name, why don't I get his actual name in the tooltip, but instead his name with spaces stripped out?

So a user called `SomeName MiddleName AndLastName` made a comment.

Now I start to reply to him: `@SomeN`, and I get a tooltip with `@SomeNameMiddleNameAndLastName`

For some names it looks kinda weird without spaces :-)