WeakReference garbage collection

source/Handlebars/Collections/DictionarySlim.cs

@@ -183,7 +183,10 @@ public void AddOrReplace(in TKey key, in TValue value)
                 (uint)i < (uint)entries.Length; i = entries[i].Next)
             {
                 if (_comparer.Equals(key, entries[i].Key))
+                {
                     entries[i].Value = value;
+                    return;
+                }
                 if (collisionCount == entries.Length)
                 {
                     // The chain of entries forms a loop; which means a concurrent update has happened.

source/Handlebars/Collections/WeakCollection.cs

@@ -13,6 +13,8 @@ public class WeakCollection<T> : IEnumerable<T> where T : class
 
         public void Add(T value)
         {
+            // Need a way to reset _firstAvailableIndex periodically
+
             for (var index = _firstAvailableIndex; index < _store.Count; index++)
             {
                 if (_store[index] == null)

source/Handlebars/Pools/BindingContext.Pool.cs

@@ -46,6 +46,8 @@ internal struct BindingContextPolicy : IInternalObjectPoolPolicy<BindingContext>
 
                 public bool Return(BindingContext item)
                 {
+                    item.Configuration = null;
+
                     item.Root = null;
                     item.Value = null;
                     item.ParentContext = null;