Section headers only render their first element

In https://github.com/skiptools/skipapp-showcase/blob/main/Sources/Showcase/GridPlayground.swift

private struct LazyVGridSectionedView: View {
    var body: some View {
        ScrollView {
            LazyVGrid(columns: [GridItem(.adaptive(minimum: 80))]) {
                ForEach(0..<5) { index in
                    Section {
                        VGridCellsView(start: index * 100, count: 10, color: .yellow)
                    } header: {
                        Text("Section \(index) Header")
                    } footer: {
                        Text("Section footer")
                    }
                    .border(.orange)
                }
            }
        }
    }
}

Copy and paste Text("Section \(index) Header"), so there are two Text views in the header.

Expected: You should see both views, aligned vertically. (In LazyHGrid, they should be aligned horizontally.)

Actual: Only the first Text view renders.

Start with Sources/Showcase/GridPlayground.swift in the linked showcase and reproduce the issue by placing two Text views in the Section header. Compare the LazyVGrid and LazyHGrid examples; done means both header views render, vertically aligned in LazyVGrid and horizontally aligned in LazyHGrid.