Free rooms don't work with canceled lessons

[McFaul4]

Steps to Reproduce

When looking for free rooms (using the feature), a rooms shows up as occupied, when there is a cancelled lesson in there. At least that's true for me. Our school doesn't allow anonymous login, but reach out to me if you can't reproduce this.

Expected Result

I think when a lesson is cancelled, the room should show up as free, because nobody is in the room.

Actual Result

The room shows up as occupied.

Android Version

Android 12

BetterUntis Version

4.0.2

Installation Source

Google Play

Additional information

No response