Miscellaneous: Players send merchant "I'm busy right now" tells during trades

[fash]

There's some race condition when both players initiate a trade with the other. It causes the players to automatically send each other those merchant "I'm busy right now." responses; however, they're sent as a player-to-player tell.

[Wed Sep 21 20:51:32 2016] Strippers is interested in making a trade.
[Wed Sep 21 20:51:40 2016] Strippers is interested in making a trade.
[Wed Sep 21 20:51:41 2016] You have cancelled the trade.
[Wed Sep 21 20:51:41 2016] You told Strippers, 'Polygnomial tells you, 'I'm busy right now.''

[Thu May 19 16:43:01 2016] Wurmm is interested in making a trade.
[Thu May 19 16:43:01 2016] You have cancelled the trade.
[Thu May 19 16:43:01 2016] You told Wurmm, 'Fash tells you, 'I'm busy right now.''
[Thu May 19 16:43:05 2016] Wurmm has offered you a Backpack.

Possibly related to http://www.project1999.com/forums/sh...d.php?t=251414?