[Ohrrpgce] SVN: teeemcee/9322 Fix "Previous Menu" in NPC picker being unselectable, and crashing if yo

[subversion at HamsterRepublic.com]

teeemcee
2017-09-09 07:47:46 -0700 (Sat, 09 Sep 2017)
229
Fix "Previous Menu" in NPC picker being unselectable, and crashing if you used Ctrl+C/V

Also replace a dubious usemenu with correct_menu_state.
correct_menu_state now updates .hover instead of wiping it (which caused
flickering)
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U   wip/mapsubs.bas
U   wip/menus.bas