C#: Script methods bound to tree_exited / _ExitTree() can't be found.

[juse4pro]

Godot version

v4.2.dev5.mono.official [e3e2528]

System information

Windows 11

Issue description

After I upgraded my Godot version from 4.2dev3 to 4.2dev5 I encountered the issue that the tree_exited signal fires on nodes that have my custom C# script attached but it somehow already "forgot" that the Node actually had my script attached. So I get the error emit_signalp: Error calling from signal 'tree_exited' to callable: 'Node2D::_on_tree_exited': Method not found. <C++ Source> core/object/object.cpp:1125 @ emit_signalp()

The same problem leads to the fact that my public override void _ExitTree() method in my script does not even run at all.

Steps to reproduce

• Create a node with a C# script attached to it that implements either _ExitTree() or where the scene is connected to the tree_exited signal (calling a method on the same scene)
• Put debug prints into the signal-connected method or the _ExitTree() one
• Create a wrapper scene which contains the first scene
• Let the node of the first scene get removed by calling QueueFree() when clicking a button or pressing any key
• Get errors (in signal case) or no printing at all (in _ExitTree() case)

Minimal reproduction project

Start the project and click the button. Notice that we don't get the log message from _ExitTree() and also an error from the tree_exited signal connection.
tree-exit-bug.zip

[AlexanderLangguth]

I tested a bit and can confirm that it is working in 4.2 dev3 but stops working in 4.2 dev4.

[zaevi]

Still confirmed in 4.2 beta1

[magian1127]

It has been confirmed that the issue is caused by the modification of Object::notification() in #78634