After upgrading from 2022.3.47 to 2022.3.48, I'm experiencing an issue where 2D GameObjects will receive what looks like an interpolated rotation from what seems to be their Rigidbody2D component. The Rigidbody2D's Interpolation value (Rigidbody2D.interpolation) is set to "Interpolate."

What's happening is that I'll spawn a GameObject, set its rotation to a y-axis value of 180 degrees (Quaternion(0f, 1f, 0f, 0f)) so that it's "looking left", and then move it to a new position using its Transform. While moving it to a new position the y-axis rotation value of the Transform (which was previously set to 180 degrees) will get a new interpolated rotation value between 0 and 180. If I set Rigidbody2D.interpolate to a value of None, then the Transform will not receive a new interpolated value, as expected.

Downgrading to 2022.3.47 with the exact same code, and GameObject settings will not produce this behavior (in fact, no other version of Unity 2022, 2021, 2020, or 2019 has produced this behavior). Upgrading to 2022.3.48 with the same code and settings will consistently produce the unexpected interpolated rotation value behavior.