The Rigidbody2D cannot rotate if you disable the collision shape and then enable it again. But it's fine if you do nothing to the collision shape.

Godot version:
3.1.1

OS/device including version:
Windows 10

Issue description:
The rotation by apply_torque_impulse of the RigidBody2D may work incorrectly in Godot 3.1.1.
If you never disable the collision shape of the RigidBody2D, everything is normal, but if you first disable the shape use $CollisionShape2D.set_deferred('disabled', true) then after some events trigger and set it enabled with $CollisionShape2D.set_deferred('disabled', false), then the rotation looks like "broken", the node can only work with apply_central_impulse but no effect with apply_torque_impulse now.

Steps to reproduce:

func _ready():
	$CollisionShape2D.set_deferred('disabled', false)

The code above works fine, but you cannot rotate with the code below:

func _ready():
	$CollisionShape2D.set_deferred('disabled', true)
	yield(get_tree().create_timer(3), 'timeout')
	$CollisionShape2D.set_deferred('disabled', false)

This is not the actual code but for the test is enough, and I upload the very little represented project in Github: https://github.com/spkingr/test-git/tree/master/SpaceShipRotation

Minimal reproduction project:
https://github.com/spkingr/test-git/tree/master/SpaceShipRotation

The images: