Conversion of gp_Quaternion to and from intrinsic Tait-Bryan angles (including gp_YawPitchRoll) is fixed.
Before that fix the sequence of rotation axes was opposite to intended; e.g. gp_YawPitchRoll (equivalent to gp_Intrinsic_ZYX) actually was defining intrinsic rotations around X, then Y, then Z.
Now this is fixed, and rotations are made in correct order.
Comments to gp_EulerSequence enumeration are restored (lost due to CDL extraction).
Test bugs fclasses bug25574 is added to check correctness of Euler sequences, including cases from #25574 and #25946.