Sync implementation split

SabreTools.DatFiles/ItemDictionary.cs

@@ -845,13 +845,24 @@ namespace SabreTools.DatFiles
             foreach (var key in keys)
 #endif
             {
-                List<DatItem>? items = this[key];
-                if (items == null)
+                ExecuteFilterOnBucket(filterRunner, key);
 #if NET40_OR_GREATER || NETCOREAPP
-                    return;
+            });
 #else
-                    continue;
+            }
 #endif
+        }
+
+        /// <summary>
+        /// Execute all filters in a filter runner on a single bucket
+        /// </summary>
+        /// <param name="filterRunner">Preconfigured filter runner to use</param>
+        /// <param name="bucketName">Name of the bucket to filter on</param>
+        private void ExecuteFilterOnBucket(FilterRunner filterRunner, string bucketName)
+        {
+            List<DatItem>? items = GetItemsForBucket(bucketName);
+            if (items == null)
+                return;
 
             // Filter all items in the current key
             List<DatItem> newItems = [];
@@ -862,14 +873,8 @@ namespace SabreTools.DatFiles
             }
 
             // Set the value in the key to the new set
-                Remove(key);
-                Add(key, newItems);
-
-#if NET40_OR_GREATER || NETCOREAPP
-            });
-#else
-            }
-#endif
+            Remove(bucketName);
+            Add(bucketName, newItems);
         }
 
         #endregion