[Bug] [EV3] hub.screen.clear() switches the leds to black

[BertLindeman]

Describe the bug
Use of screen.clear() does not show the "running" led animations anymore.

To reproduce
Steps to reproduce the behavior:

1. Run a program like this on the EV3

from pybricks import version
print(version)

from pybricks.hubs import EV3Brick
from pybricks.tools import wait, StopWatch
from pybricks.parameters import Color, Direction, Port

hub = EV3Brick()

print("do clear")
hub.screen.clear()
wait(1000)
hub.light.on(Color.RED)
wait(1000)
hub.light.on(Color.GREEN)
wait(1000)
print("done")

2. Observe the led lights on the hub. No more fading green leds.

Expected behavior
What did you expect to happen instead?
To see the "running" animation until the program sets another color.

Screenshots
There is a saying that a picture is worth a 1000 words. Screenshots really help to identify and solve problems.

[EDIT}:
extra info
In the text above I only thought of the "running animation" by the leds, but there also is a "running animation" on screen.
Maybe this commit eacea37 is the culprit

From pybricks/parameters/pb_type_image.c:

            // At the moment, platforms with a display have at most one
            // animation so we can use the generic stop all method. In the
            // future, we could tie animations to a screen or image instance.

[swanjeng]

This happens when any screen function is used.