Keyword Cloud 255 limit can be over ridden

I'm not sure if this behaviour is a bug but thought I would report it. I have a keyword cloud on my Browse page. It displayed fine previously. I looked at it today and it was almost solid gray. I had the auto keyword generate upon upload feature turned on and this generates a lot of keywords.

I went into the settings page on the cloud and saw that the number of keyword limit was blank. I tried to set it to 400 and received a message that 255 is the maximum. I then set it to 200 and the cloud displayed fine. I then went back and set it to blank and it displayed all of the available keywords resulting in a gray blob. So be careful if you leave this field blank.

I have set the keyword limit at 200 and it works fine for me. This also gave me an idea to see if I could blank out the display limit of 200 on map pages but alas it writes in a 1 if you leave it blank.