[flame_riverpod] "Null check operator used on a null value" on onMount() again

[howmind]

Current bug behavior

Exception when compement onMount() in RiverpodComponentMixin

Expected behavior

Not exception

Steps to reproduce

use the RouterComponent to jump among two routes

• setup two pages and navigate between them

world.add(
      router = RouterComponent(
        routes: {
          'home': Route(HomePage.new, maintainState: true),
          'play': Route(PlayPage.new, maintainState: true),
        },
        initialRoute: 'home',
      ),
    );

class HomePage extends Component
    with HasGameReference<TestGame>, RiverpodComponentMixin {
}

class PlayPage extends Component
    with HasGameReference<TestGame>, RiverpodComponentMixin {
}

Flutter doctor output

Output of: flutter doctor -v

More environment information

• Flame version: 1.14.0

Log information

══╡ EXCEPTION CAUGHT BY SCHEDULER LIBRARY ╞═════
The following _TypeError was thrown during a scheduler callback:
Null check operator used on a null value

When the exception was thrown, this was the stack:
#0      RiverpodComponentMixin.onMount (package:flame_riverpod/src/consumer.dart:99:13)
#1      PlayPage.onMount (package:red_twine/pages/play.dart:50:11)
#2      Component._mount (package:flame/src/components/core/component.dart:889:5)
#3      Component.handleLifecycleEventAdd (package:flame/src/components/core/component.dart:805:7)
#4      ComponentTreeRoot.processLifecycleEvents (package:flame/src/components/core/component_tree_root.dart:92:28)

More information

if set maintainState = false , the exception is missing.

   Route(HomePage.new, maintainState: false)

review codes, ref.game will be set null when onRemove. But onLoad() will never been invoked under "maintainState: true" in Route - keep a component instance, and removed and re-mounted the compoment again,