I like how you changed your original map suggestion to a new one when you realized it was added in the server already. I already posted the map list in the other topic lol.
About the bug, it really doesn't matter, not a concern to fix it as it is not causing any issues other than telling you what number you selected. Besides the knifes are limited time thing.
About the map you suggesting, it is not the name. Correct name is jb_flyhigh
http://gamebanana.com/maps/169343 and will not be added as we have plenty of new maps added for the moment, it is on the list already in future.