trouble after applying a wielded cream pie

<Someone> wrote:
> I can' t find this bug in the known bug list. If I missed I do apologize.
> It occurs on the standard windows nethack.exe. Just wield a cream pie
> and then apply it. Press x to switch weapons. Program in disorder.
> s - 1752440940 glorkum 32 26485 101's named ? (alternate weapon; not wielded).
> Greetings, <Someone>

It crashed with an access violation for me.

doc/fixes34.4

@@ -261,6 +261,7 @@ try to keep migrating monsters from escaping the wizard tower
 affected monsters should always respect "Elbereth"
 try harder to keep dragged chain between ball and hero
 fireproof containers should not burn in lava
+fix invalid pointer dereference after applying a wielded cream pie
 
 
 Platform- and/or Interface-Specific Fixes

src/apply.c

@@ -2599,6 +2599,8 @@ struct obj *obj;
 			You_cant("see through all the sticky goop on your %s.",
 				body_part(FACE));
 	}
+
+	setnotworn(obj);
 	/* useup() is appropriate, but we want costly_alteration()'s message */
 	costly_alteration(obj, COST_SPLAT);
 	obj_extract_self(obj);