PM Ignorelist clears if an empty line is present

[actmyname]

Discovered this accidentally while blocking some users that don't like to read.

If you insert a newline between names of your ignorelist and update (change profile) the entire list disappears.

Of course, this is not a huge issue since browser caches will allow you to rectify this problem by simply going back in history, but I figure this is something to point out.

Example of what I mean: