Please don't let old savegames override preferences

[MarkusRamikin]

For a while I couldn't understand why despite wc2.preferences.ShowTips = false, the game still showed me tips after restarting the game.

It's a bad idea to store settings in a savegame and have them override your current options. If I decide that, say, I want to play without tips, or without music, etc., reloading one of my older savegames shouldn't put me back to the old setting.