Fix double cancellation of Shared.Subscription

pointfreeco · Nov 14, 2024 · b9a9bf5 · b9a9bf5
1 parent 226bbdf
commit b9a9bf5
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/Sources/ComposableArchitecture/SharedState/PersistenceKey.swift b/Sources/ComposableArchitecture/SharedState/PersistenceKey.swift
@@ -79,7 +79,12 @@ extension Shared {
     ///
     /// - Parameter cancel: A closure that the `cancel()` method executes.
     public init(_ cancel: @escaping () -> Void) {
-      self.onCancel = cancel
+      var cancelled = true
+      self.onCancel = {
+        guard !cancelled else { return }
+        cancelled = true
+        cancel()
+      }
     }
 
     deinit {