Behavior of Input event changed since Godot 3.3.2

[danilw]

Godot version

3.4.2-stable 3.5-beta1

System information

Linux x11

Issue description

Godot in options set to Single-thread.

Tested on exported template and editor (same behavior).

var events = 0

func _process(delta):
  print(events)
  events = 0

func _input(event):
  if(event is InputEventMouseMotion):
    events+=1

On Godot 3.3.2-stable this code always print 1

On Godot 3.4.2-stable and 3.5-beta1 this code print "many events".

Maybe Im missing something, I was expecting "whole application work in single thread".

Only related change I remember (in one of stable updates) - is "fix for input" to make it separated from rendering frame... this behavior expected and not_a_bug?

This means I have to move old "input" to _process function, basically.

Steps to reproduce

launch example code

Minimal reproduction project

No response

[Calinou]

Duplicate of #55037.