Fix SafeAreaPaddingModifier

Author: Dark-Existed

Example/OpenSwiftUIUITests/Layout/Modifier/InsetViewModifierUITests.swift

@@ -8,10 +8,7 @@ import Testing
 @Suite(.snapshots(record: .never, diffTool: diffTool))
 struct InsetViewModifierUITests {
 
-    @Test(
-        .bug("https://github.com/OpenSwiftUIProject/OpenSwiftUI/issues/511"),
-        .disabled("Extra spacing value is taken into account. Disable the test case before we fix it.")
-    )
+    @Test(.bug("https://github.com/OpenSwiftUIProject/OpenSwiftUI/issues/511"))
     func safeAreaPaddingWithEdgeInsets() {
         struct ContentView: View {
             var body: some View {

Sources/OpenSwiftUICore/Layout/Modifier/InsetViewModifier.swift

@@ -253,20 +253,20 @@ struct SafeAreaPaddingModifier: ViewModifier {
 
     @usableFromInline
     func body(content: SafeAreaPaddingModifier.Content) -> some View {
-        content.safeAreaInset(edge: .top) {
+        content.safeAreaInset(edge: .top, spacing: 0) {
             insetView(edge: .top)
-        }.safeAreaInset(edge: .bottom) {
+        }.safeAreaInset(edge: .bottom, spacing: 0) {
             insetView(edge: .bottom)
-        }.safeAreaInset(edge: .leading) {
+        }.safeAreaInset(edge: .leading, spacing: 0) {
             insetView(edge: .leading)
-        }.safeAreaInset(edge: .trailing) {
+        }.safeAreaInset(edge: .trailing, spacing: 0) {
             insetView(edge: .trailing)
         }
     }
 
     private func insetView(edge: Edge) -> some View {
         let axis = Axis(edge: edge)
-        let inset = (insets ?? defaultPadding)[edge]
+        let inset = edges.contains(edge) ? (insets ?? defaultPadding)[edge] : 0
         return axis == .horizontal
             ? Color.clear.frame(width: inset)
             : Color.clear.frame(height: inset)