Implement "IK Stretch" Property to work (also) with Auto IK Option

Hello, folks!

Did you know, the IK Stretch Property, in the Inverse Kinematics Panel (accessible on Pose Mode only), works normally with the IK Bone Constraint... however, it is completely ignored, in the case of the use of Auto IK Option --for no apparent reason?

But isn't that ironical, that, precisely, IK Stretch doesn't work with [Auto] IK?😹

Sorry, I don't know yet about IK Stretch in relation to Spline IK Bone Constraint (maybe someone can confirm?)... but at least I know this limitation for Auto IK Option; this causes frustration and forbiddens alternative or simpler Rig tricks.

You can test on your own, but here is an Ilustrative evidence:

Thanks!