Incorrect behaviour for doubleclick on an Area2D on mobile devices

[andy-noisyduck]

Godot version:
3.2.3

OS/device including version:
Desktop test was Win 10.
Mobile test Android 11 on Galaxy S10e.

Issue description:
When double tapping an Area2D on mobile has incorrect behaviour compared to desktop:

• An extra event is raised (so 5 events instead of 4). The extra event has the doubleclick property set to true, but has the pressed property set to false, and it has a different button_index to the other press events in the sequence.
• The 2nd press event (for the touch pressed event) does not have the doubleclick property set.

Steps to reproduce:
With default project settings (i.e. "Emulate Touch As Mouse" is true):

1. Create an Area2D with an appropriate CollisionObject.
2. Connect to the input_event signal on the Area2D object.
3. Print the input events, including the doubleclick, pressed, and button_index parameters.

On Desktop the output for a double click is (4 events generated, press and release for each touch in the double click):

Event doubleclick = False, pressed = True, button_index = 1
Event doubleclick = False, pressed = False, button_index = 1
Event doubleclick = True, pressed = True, button_index = 1
Event doubleclick = False, pressed = False, button_index = 

On mobile the output is as follows (notice the extra event, and the incorrect 2nd touch event).

Event doubleclick = False, pressed = True, button_index = 1
Event doubleclick = False, pressed = False, button_index = 1
Event doubleclick = True, pressed = False, button_index = 0
Event doubleclick = False, pressed = True, button_index = 1
Event doubleclick = False, pressed = False, button_index = 1

Minimal reproduction project:
Testing-DoubleClickInput.zip

[andy-noisyduck]

Possible related to #46100

[m4gr3d]

@thebestnom Any thoughts on this issue?

[thebestnom]

Weird, is it a regression? Did it worked before? It might be something that I that did I haven't noticed but I doubt it

Anyone on it or I take the fix?

[m4gr3d]

@thebestnom Feel free to take the fix :)

[thebestnom]

Btw, I had way less time on my hand that I though, Ill try to work on that tomorrow