Steps to reproduce

This is a duplicate of #160912. That issue was closed but problem is still happening so I am opening this issue

I am trying to use a CupertinoSliverRefreshControl inside a NestedScrollView's headerSliverBuilder on iOS. However refresh is not triggered on over-scroll. Nothing works

Expected results

I expect that swipe refresh works correctly on iOS

Actual results

Swipe refresh does not work as expected

Code sample

NestedScrollView(
        physics: const AlwaysScrollableScrollPhysics(),
        headerSliverBuilder: (_, __) => [
          if (Platform.isIOS)
            CupertinoSliverRefreshControl(
              onRefresh: _onRefresh,
            ),
          const SliverToBoxAdapter(
            child: SizedBox(
              height: twentyDotNil,
            ),
          ),
    ...
)

Screenshots or Video

Flutter Doctor output

Doctor output