(svn r16324) [0.7] -Backport from trunk:

- Fix: Desyncs due to the fact that depot searching with a maximum search depth simply does not work with YAPF's caches [FS#2900] (r16323)
- Fix: Trains could get stuck in a depot when they wanted to go to the same depot again [FS#2873] (r16322)
- Fix: In the scenario editor change the (starting) game year of the scenario, not the (starting) game year for new games/scenarios (r16321)
- Fix: Loading of savegames created in revision between 0.3.5 and 0.3.6 caused crash (r16320)
- Fix: [NoAI] Set the autorenew settings for new AI companies to the default values, not to 0 or the local settings (r16316)
- Fix: [NewGRF] Allow accessing the house age when the house is not yet built (r16314)
- Fix: (Get|Set)TrackBits() is only valid for RAIL_TILE_NORMAL and _SIGNALS (r16311)

src/company_cmd.cpp

@@ -445,6 +445,12 @@ Company *DoStartupNewCompany(bool is_ai)
 	c->inaugurated_year = _cur_year;
 	RandomCompanyManagerFaceBits(c->face, (GenderEthnicity)Random(), false); // create a random company manager face
 
+	/* Settings for non-ai companies are copied from the client settings later. */
+	if (is_ai) {
+		c->engine_renew_money = 100000;
+		c->engine_renew_months = 6;
+	}
+
 	GeneratePresidentName(c);
 
 	InvalidateWindow(WC_GRAPH_LEGEND, 0);