Executing ColorPickerButton.propagate_notification(33) crashes Godot

[qarmin]

Godot version

3.4.beta.custom_build. 01ae488

System information

Ubuntu 21.10 - Nvidia GTX 970, Gnome shell 3.38 X11

Issue description

When executing

	var temp_variable115 = ColorPickerButton.new()
	temp_variable115.propagate_notification(33)

Godot crashes with this backtrace

scene/gui/control.cpp:555:31: runtime error: member access within null pointer of type 'struct Viewport'
scene/gui/control.cpp:555:31: runtime error: member call on null pointer of type 'struct Object'
scene/gui/control.cpp:555:31: runtime error: member access within null pointer of type 'struct Object'

================================================================
handle_crash: Program crashed with signal 11
Engine version: Godot Engine v3.4.rc.custom_build (62f56af6942438d70c7787770e2cf84c46fea546)
Dumping the backtrace. Please include this when reporting the bug on https://github.com/godotengine/godot/issues
[1] godots() [0x17d976c] (/mnt/Miecz/godot3.2/platform/x11/crash_handler_x11.cpp:56)
[2] /lib/x86_64-linux-gnu/libc.so.6(+0x46520) [0x7f34bf935520] (??:0)
[3] Control::_notification(int) (/mnt/Miecz/godot3.2/scene/gui/control.cpp:555)
[4] Control::_notificationv(int, bool) (/mnt/Miecz/godot3.2/./scene/gui/control.h:47 (discriminator 14))
[5] BaseButton::_notificationv(int, bool) (/mnt/Miecz/godot3.2/./scene/gui/base_button.h:39 (discriminator 3))
[6] Button::_notificationv(int, bool) (/mnt/Miecz/godot3.2/./scene/gui/button.h:37 (discriminator 3))
[7] ColorPickerButton::_notificationv(int, bool) (/mnt/Miecz/godot3.2/scene/gui/color_picker.h:149 (discriminator 3))
[8] Object::notification(int, bool) (/mnt/Miecz/godot3.2/core/object.cpp:929)
[9] Node::propagate_notification(int) (/mnt/Miecz/godot3.2/scene/main/node.cpp:1736)
[10] MethodBind1<int>::call(Object*, Variant const**, int, Variant::CallError&) (/mnt/Miecz/godot3.2/./core/method_bind.gen.inc:775 (discriminator 12))
[11] Object::call(StringName const&, Variant const**, int, Variant::CallError&) (/mnt/Miecz/godot3.2/core/object.cpp:918 (discriminator 1))
[12] Object::callv(StringName const&, Array const&) (/mnt/Miecz/godot3.2/core/object.cpp:828 (discriminator 1))
[13] MethodBind2R<Variant, StringName const&, Array const&>::call(Object*, Variant const**, int, Variant::CallError&) (/mnt/Miecz/godot3.2/./core/method_bind.gen.inc:1717 (discriminator 12))
[14] Object::call(StringName const&, Variant const**, int, Variant::CallError&) (/mnt/Miecz/godot3.2/core/object.cpp:918 (discriminator 1))
[15] Variant::call_ptr(StringName const&, Variant const**, int, Variant*, Variant::CallError&) (/mnt/Miecz/godot3.2/core/variant_call.cpp:1175 (discriminator 1))
[16] GDScriptFunction::call(GDScriptInstance*, Variant const**, int, Variant::CallError&, GDScriptFunction::CallState*) (/mnt/Miecz/godot3.2/modules/gdscript/gdscript_function.cpp:1044)
[17] GDScriptInstance::call(StringName const&, Variant const**, int, Variant::CallError&) (/mnt/Miecz/godot3.2/modules/gdscript/gdscript.cpp:1169)
[18] Object::call(StringName const&, Variant const**, int, Variant::CallError&) (/mnt/Miecz/godot3.2/core/object.cpp:899 (discriminator 1))
[19] Variant::call_ptr(StringName const&, Variant const**, int, Variant*, Variant::CallError&) (/mnt/Miecz/godot3.2/core/variant_call.cpp:1175 (discriminator 1))
[20] GDScriptFunction::call(GDScriptInstance*, Variant const**, int, Variant::CallError&, GDScriptFunction::CallState*) (/mnt/Miecz/godot3.2/modules/gdscript/gdscript_function.cpp:1049)
[21] GDScriptInstance::call_multilevel(StringName const&, Variant const**, int) (/mnt/Miecz/godot3.2/modules/gdscript/gdscript.cpp:1184)
[22] Node::_notification(int) (/mnt/Miecz/godot3.2/scene/main/node.cpp:57)
[23] Node::_notificationv(int, bool) (/mnt/Miecz/godot3.2/./scene/main/node.h:45 (discriminator 14))
[24] Object::notification(int, bool) (/mnt/Miecz/godot3.2/core/object.cpp:929)
[25] SceneTree::_notify_group_pause(StringName const&, int) (/mnt/Miecz/godot3.2/scene/main/scene_tree.cpp:977)
[26] SceneTree::idle(float) (/mnt/Miecz/godot3.2/scene/main/scene_tree.cpp:528 (discriminator 3))
[27] Main::iteration() (/mnt/Miecz/godot3.2/main/main.cpp:2188)
[28] OS_X11::run() (/mnt/Miecz/godot3.2/platform/x11/os_x11.cpp:3641)
[29] godots(main+0x33e) [0x17cfd54] (/mnt/Miecz/godot3.2/platform/x11/godot_x11.cpp:57)
[30] /lib/x86_64-linux-gnu/libc.so.6(+0x2dfd0) [0x7f34bf91cfd0] (??:0)
[31] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x7d) [0x7f34bf91d07d] (??:0)
[32] godots(_start+0x25) [0x17cf955] (??:?)
-- END OF BACKTRACE --
================================================================

This example was found by Godot fuzzer - Qarminer, so it is quite unlikelly that this code could be used in real project, but still this should be handled gracefully.

Steps to reproduce

Above

Minimal reproduction project

No response

[akien-mga]

Fixed by #54170 (and by #54120 in 4.0).