(svn r11452) -Change: do not allow configuration changes, that NewGRFs can directly use to change their behaviour, during network games as this can cause desyncs.

src/settings.h

@@ -37,7 +37,8 @@ enum SettingGuiFlagLong {
 	SGF_MULTISTRING  = 1 << 2, ///< the value represents a limited number of string-options (internally integer)
 	SGF_NETWORK_ONLY = 1 << 3, ///< this setting only applies to network games
 	SGF_CURRENCY     = 1 << 4, ///< the number represents money, so when reading value multiply by exchange rate
-	SGF_END          = 1 << 5,
+	SGF_NO_NETWORK   = 1 << 5, ///< this setting does not apply to network games; it may not be changed during the game
+	SGF_END          = 1 << 6,
 	/* 3 more possible flags */
 };