clear maplists on /rehash to except overflow https://github.com/pvpgn/pvpgn-server/issues/429

src/bnetd/anongame_maplists.cpp

@@ -379,7 +379,16 @@ namespace pvpgn
 
 		extern void anongame_tournament_maplists_destroy(void)
 		{
-			return; /* nothing to destroy */
+			int j;
+
+			// reset
+			for (j = 0; j < ANONGAME_TYPES; j++) {
+				maplists_war3[j][0] = 0;
+				maplists_w3xp[j][0] = 0;
+				maplists_yuri[j][0] = 0;
+				maplists_ral2[j][0] = 0;
+			}
+			return;
 		}
 
 	}