Fix auto added third sigil when only two sigil exist in the map.

If the item that is converted to the third sigil had "count" set on the entity in the map, it would be impossible to pick up.

engine/code/game/g_team.c

@@ -395,6 +395,7 @@ void ValidateSigilsInMap( gentity_t *ent )
                 targ->item = item;
                 targ->r.svFlags = SVF_BROADCAST;
                 targ->s.powerups = PW_SIGILWHITE;
+                targ->count = 0;
                 teamgame.sigil[teamgame.numSigils].entity = targ;
                 teamgame.numSigils++;
             }