Closes #1865; make unzoning correctly destroy objects

src/client/js/rendering/renderer.js

@@ -82,6 +82,7 @@ define([
 			PIXI.settings.RESOLUTION = 1;
 
 			events.on('onGetMap', this.onGetMap.bind(this));
+			events.on('onShowCharacterSelect', this.onShowCharacterSelect.bind(this));
 			events.on('onToggleFullscreen', this.toggleScreen.bind(this));
 			events.on('onMoveSpeedChange', this.adaptCameraMoveSpeed.bind(this));
 
@@ -274,6 +275,10 @@ define([
 			return tile;
 		},
 
+		onShowCharacterSelect: function () {
+			this.zoneId = null;
+		},
+
 		onGetMap: function (msg) {
 			this.titleScreen = false;
 			physics.init(msg.collisionMap);

src/client/ui/templates/mainMenu/mainMenu.js

@@ -59,7 +59,7 @@ define([
 
 		onCharSelect: function () {
 			renderer.clean();
-			objects.onRezone();
+			objects.onRezone(null);
 			renderer.buildTitleScreen();
 			sound.unload();