Fix concurrency issue.

backend/src/Squidex.Domain.Apps.Core.Operations/Scripting/ContentWrapper/ContentDataObject.cs

@@ -98,7 +98,7 @@ namespace Squidex.Domain.Apps.Core.Scripting.ContentWrapper
 
             var propertyName = property.AsString();
 
-            fieldProperties.GetOrAdd(propertyName, this, (k, c) => new ContentDataProperty(c)).Value = value;
+            fieldProperties.GetOrAdd(propertyName, (k, c) => new ContentDataProperty(c), this).Value = value;
 
             return true;
         }
@@ -114,7 +114,7 @@ namespace Squidex.Domain.Apps.Core.Scripting.ContentWrapper
                 return PropertyDescriptor.Undefined;
             }
 
-            return fieldProperties.GetOrAdd(propertyName, this, (k, c) => new ContentDataProperty(c, new ContentFieldObject(c, new ContentFieldData(), false)));
+            return fieldProperties.GetOrAdd(propertyName, (k, c) => new ContentDataProperty(c, new ContentFieldObject(c, new ContentFieldData(), false)), this);
         }
 
         public override IEnumerable<KeyValuePair<JsValue, PropertyDescriptor>> GetOwnProperties()

backend/src/Squidex.Infrastructure/CollectionExtensions.cs

@@ -331,11 +331,11 @@ namespace Squidex.Infrastructure
             return dictionary.GetOrAdd(key, _ => new TValue());
         }
 
-        public static TValue GetOrCreate<TKey, TValue>(this IReadOnlyDictionary<TKey, TValue> dictionary, TKey key, Func<TKey, TValue> creator) where TKey : notnull
+        public static TValue GetOrCreate<TKey, TValue>(this IReadOnlyDictionary<TKey, TValue> dictionary, TKey key, Func<TKey, TValue> valueFactory) where TKey : notnull
         {
             if (!dictionary.TryGetValue(key, out var result))
             {
-                result = creator(key);
+                result = valueFactory(key);
             }
 
             return result;
@@ -353,11 +353,11 @@ namespace Squidex.Infrastructure
             return result;
         }
 
-        public static TValue GetOrAdd<TKey, TValue>(this IDictionary<TKey, TValue> dictionary, TKey key, Func<TKey, TValue> creator) where TKey : notnull
+        public static TValue GetOrAdd<TKey, TValue>(this IDictionary<TKey, TValue> dictionary, TKey key, Func<TKey, TValue> valueFactory) where TKey : notnull
         {
             if (!dictionary.TryGetValue(key, out var result))
             {
-                result = creator(key);
+                result = valueFactory(key);
 
                 dictionary.Add(key, result);
             }
@@ -365,11 +365,11 @@ namespace Squidex.Infrastructure
             return result;
         }
 
-        public static TValue GetOrAdd<TKey, TContext, TValue>(this IDictionary<TKey, TValue> dictionary, TKey key, TContext context, Func<TKey, TContext, TValue> creator) where TKey : notnull
+        public static TValue GetOrAdd<TKey, TArg, TValue>(this IDictionary<TKey, TValue> dictionary, TKey key, Func<TKey, TArg, TValue> valueFactory, TArg factoryArgument) where TKey : notnull
         {
             if (!dictionary.TryGetValue(key, out var result))
             {
-                result = creator(key, context);
+                result = valueFactory(key, factoryArgument);
 
                 dictionary.Add(key, result);
             }

backend/src/Squidex.Infrastructure/Orleans/ActivationLimiter.cs

@@ -55,7 +55,7 @@ namespace Squidex.Infrastructure.Orleans
 
         public void Register(Type grainType, IDeactivater deactivater, int maxActivations)
         {
-            var byType = instances.GetOrAdd(grainType, maxActivations, (t, a) => new LastUsedInstances(a));
+            var byType = instances.GetOrAdd(grainType, (t, a) => new LastUsedInstances(a), maxActivations);
 
             byType.Register(deactivater);
         }