From fc7ae57f11b5a1db6fb5394ae7a7fcc55e04ec1d Mon Sep 17 00:00:00 2001
From: Mark Langsdorf <mark.langsdorf@gmail.com>
Date: Sun, 22 Sep 2019 14:40:50 -0500
Subject: [PATCH] NPCs: uncache weapon value on weapon removal

Fixes #32613

The trade interface allowed you to remove an NPC's weapon without
removing the cached value of the weapon.

Invalided the weapon value cache entry when a weapon is removed.
---
 src/character.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/character.cpp b/src/character.cpp
index 1db509dbf949e..f6dafc85670a4 100644
--- a/src/character.cpp
+++ b/src/character.cpp
@@ -1251,6 +1251,7 @@ item Character::remove_weapon()
 {
     item tmp = weapon;
     weapon = item();
+    cached_info.erase( "weapon_value" );
     return tmp;
 }