Fixes another Xcode 16 beta 6 problem. (#265)

* Fixes another Xcode 16 beta 6 problem.

* Revert "Fixes another Xcode 16 beta 6 problem."

This reverts commit cb7eed3.

* wip

Author: mbrandonw

Dependencies.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -65,11 +65,12 @@ public func withDependencies<R>(
     _ updateValuesForOperation: (inout DependencyValues) async throws -> Void,
     operation: () async throws -> R
   ) async rethrows -> R {
-    try await isSetting(true) {
+    #if DEBUG
+    try await DependencyValues.$isSetting.withValue(true) {
       var dependencies = DependencyValues._current
       try await updateValuesForOperation(&dependencies)
       return try await DependencyValues.$_current.withValue(dependencies) {
-        try await isSetting(false) {
+        try await DependencyValues.$isSetting.withValue(false) {
           let result = try await operation()
           if R.self is AnyClass {
             dependencyObjects.store(result as AnyObject)
@@ -78,6 +79,17 @@ public func withDependencies<R>(
         }
       }
     }
+    #else
+    var dependencies = DependencyValues._current
+    try await updateValuesForOperation(&dependencies)
+    return try await DependencyValues.$_current.withValue(dependencies) {
+      let result = try await operation()
+      if R.self is AnyClass {
+        dependencyObjects.store(result as AnyObject)
+      }
+      return result
+    }
+    #endif
   }
 #else
   @_unsafeInheritExecutor
@@ -471,27 +483,14 @@ private func isSetting<R>(
   _ value: Bool,
   operation: () throws -> R
 ) rethrows -> R {
-  #if DEBUG
-    try DependencyValues.$isSetting.withValue(value, operation: operation)
-  #else
-    try operation()
-  #endif
+#if DEBUG
+  try DependencyValues.$isSetting.withValue(value, operation: operation)
+#else
+  try operation()
+#endif
 }
 
-#if swift(>=6)
-  @_transparent
-  private func isSetting<R>(
-    _ value: Bool,
-    isolation: isolated (any Actor)? = #isolation,
-    operation: () async throws -> R
-  ) async rethrows -> R {
-    #if DEBUG
-      try await DependencyValues.$isSetting.withValue(value, operation: operation)
-    #else
-      try await operation()
-    #endif
-  }
-#else
+#if swift(<6)
   @_transparent
   private func isSetting<R>(
     _ value: Bool,