Fix Juiblex attacking without knowing your location

Juiblex could expel the hero over water, they'd get relocated to
a safe location, but Juiblex was still thinking they were at
the location it expelled them.

src/monmove.c

@@ -683,6 +683,7 @@ dochug(register struct monst* mtmp)
         /* tactics -> mnexto -> deal_with_overcrowding */
         if (mtmp->mstate)
             return 0;
+        set_apparxy(mtmp);
     }
 
     /* check distance and scariness of attacks */