urk sometimes sends lines to the irc server that are over the 512 character limit

[madewokherd]

Imported from https://sourceforge.net/apps/mantisbt/urk/view.php?id=8

The IRC protocol limits all lines to no more than 512 characters, including the terminating crlf. urk ignores this limit, and long messages can be dropped by the server.

Because the server adds the user's full address (nick!user@host) to message lines before sending them to other users, messages that are not ignored can get cut off. The maximum message length depends on the user's current full address, which cannot be reliably determined on the client side.