fix #4279 - kicked daggers are lost

A kicked object which hits a monster wasn't placed back on map,
removing it from play.

doc/fixes36.1

@@ -190,6 +190,7 @@ some instances of stun or confusion timers were being overridden rather than
 	incremented when new stun or confusion damage was suffered
 female gnome who gains level can grow up into male-only gnome lord; give an
 	an alternate message instead of prohibiting the promotion
+kicked weapon which successfully hits monster vanishes from play
 
 
 Platform- and/or Interface-Specific Fixes

src/dothrow.c

@@ -1364,8 +1364,9 @@ register struct obj *obj; /* thrownobj or kickedobj or uwep */
     int otyp = obj->otyp, hmode;
     boolean guaranteed_hit = (u.uswallow && mon == u.ustuck);
 
-    hmode = (obj == uwep) ? HMON_APPLIED : (obj == kickedobj) ? HMON_KICKED
-                                                              : HMON_THROWN;
+    hmode = (obj == uwep) ? HMON_APPLIED
+              : (obj == kickedobj) ? HMON_KICKED
+                : HMON_THROWN;
 
     /* Differences from melee weapons:
      *
@@ -1509,18 +1510,22 @@ register struct obj *obj; /* thrownobj or kickedobj or uwep */
         }
 
         if (tmp >= rnd(20)) {
+            boolean wasthrown = (thrownobj != 0);
+
+            /* attack hits mon */
             if (hmode == HMON_APPLIED)
                 u.uconduct.weaphit++;
             if (hmon(mon, obj, hmode)) { /* mon still alive */
                 cutworm(mon, bhitpos.x, bhitpos.y, obj);
             }
             exercise(A_DEX, TRUE);
-            /* if hero is swallowed and projectile kills the engulfer,
-               obj gets added to engulfer's inventory and then dropped,
+            /* if hero was swallowed and projectile killed the engulfer,
+               'obj' got added to engulfer's inventory and then dropped,
                so we can't safely use that pointer anymore; it escapes
                the chance to be used up here... */
-            if (!thrownobj)
+            if (wasthrown && !thrownobj)
                 return 1;
+
             /* projectiles other than magic stones
                sometimes disappear when thrown */
             if (objects[otyp].oc_skill < P_NONE
@@ -1531,6 +1536,7 @@ register struct obj *obj; /* thrownobj or kickedobj or uwep */
                  * but we need ammo to stay around longer on average.
                  */
                 int broken, chance;
+
                 chance = 3 + greatest_erosion(obj) - obj->spe;
                 if (chance > 1)
                     broken = rn2(chance);