[BottomSheet] Fix sheet corners animation

Resolves #3541
Resolves #3540

GIT_ORIGIN_REV_ID=747db4e9eeed0b14ea1f949862176346afc4944a
PiperOrigin-RevId: 560143863

Author: pubiqq

lib/java/com/google/android/material/bottomsheet/BottomSheetBehavior.java

@@ -1448,8 +1448,8 @@ private void updateDrawableForTargetState(@State int state, boolean animate) {
       if (interpolatorAnimator.isRunning()) {
         interpolatorAnimator.reverse();
       } else {
+        float from = materialShapeDrawable.getInterpolation();
         float to = removeCorners ? calculateInterpolationWithCornersRemoved() : 1f;
-        float from = 1f - to;
         interpolatorAnimator.setFloatValues(from, to);
         interpolatorAnimator.start();
       }