Flipping Transformed Node Affects Wrong Scale Axis

[fredrik-bravo]

When flipping along the X-axis (horizontal flip), the Y value becomes negative instead of the X value, which is unexpected. In contrast, when flipping along the Y-axis (vertical flip), the Y value correctly changes to negative. However, the X value never becomes negative, regardless of whether the flip is horizontal and/or vertical.

[lavrton]

This is how current internal "matrix decomposition" works. As it is producing identical visual results, I am not really sure if it is something important to fix.