Overlaying rotated objects causes artifacts (kivy 2.2.0 only)

[20Tauri]

Software Versions

• Python: 3.8.10
• OS: Window 10
• Kivy: 2.2.0
• Kivy installation method: pip

Describe the bug
When a widget is rotated and another widget overlaps it, the displayed result is incorrect.

The rotation method is classical and a result is displayed later in the description

Expected behavior
Same with 2.1.0: no artefact

Code and Logs and screenshots

    canvas.before:
        PushMatrix
        Rotate:
            angle: self.rotate_angle
            axis: 0, 0, 1
            origin: self.center

    canvas.after:
        PopMatrix

Problem is on the left top corner and the bottom right corner
Note that the same object in the left bottom corner is displayed correctly.

[20Tauri]

Caused #8169 and Stencil in style.kv (see b8910a7)

[DexerBR]

Hi @20Tauri!

Could you test the master (which includes PR #8276)?

[20Tauri]

Hi @DexerBR,

Tests have been made with a 2.2.0 version with manual report of your change
Seems OK,

I have opened a new issue (#8278) because I have to override style.kv to mae my application work properly... This not relate our problem

[misl6]

Fixed via #8276