[0.15.20] Server crash when creating map tooltip during join

[zerohourrct]

I can reproduce a server crash right now by creating a map tooltip while someone is joining (downloading the map), then pressing cancel.

I'd advise players to not do this

Here is a DL link for the affected map: https://drive.google.com/open?id=0B4Tvv ... mdpUS1GN00

[zerohourrct]

This might be because of certain players joining instead of map tooltips, it's hard to tell. Would be nice if someone else could try to reproduce.

[Rseding91]

Please post the crash log.

[zerohourrct]

Seems to have stopped as of .21; probably due to the fixed issue and not map tooltips. I just love creating map tooltips...