Setting RigidBody2D to MODE_CHARACTER turns off sleeping

[chucklepie]

Godot version

3.3 stable

System information

Linux

Issue description

If a rigidbody2d has sleeping set to true, but you change its mode to MODE_CHARACTER, then sleeping property currently set is bypassed, set to true and the body wakes up.

The manual states states only woken via

1. another body
2. apply_impulse or add_force

"...will not calculate forces until woken up by another body through, for example, a collision, or by using the apply_impulse or add_force methods."

If this is not the case, can the documentation be updated please?

Steps to reproduce

1. Create a rigidbody2d with sleeping set to true
2. In code change mode to MODE_CHARACTER

Minimal reproduction project

No response

[Calinou]

Duplicate of #7996.