Hi,

I am using a custom Collection to register event handlers on publish etc. This was all working in 8.6.0 updated to 8.6.1 today and it is now not booting.

Code:

Collection

public class EventHandlerCollection : BuilderCollectionBase<IEventHandler<IMyInterface>>
{
    public IndexingEventHandlerCollection(IEnumerable<IEventHandler<IMyInterface>> items) : base(items)
    {
    }
}

Builder

public class IEventHandlerCollectionBuilder : SetCollectionBuilderBase<IEventHandlerCollectionBuilder, EventHandlerCollection, IEventHandler<IMyInterface>>
{
    protected override IEventHandlerCollectionBuilder This => this;
}

Composers

[ComposeBefore(typeof(ComposerB))]
public class ComposerA : IUserComposer
{
    public void Compose(Composition composition)
    {
       ...
       composition.WithCollectionBuilder<EventHandlerCollectionBuilder>().Add<IEventHandler<MyClass>>();
       ...
    }
}

public class ComposerB : ComponentComposer<EventComponent>
{
}

Component

public class Component : IComponent
{
    private readonly EventHandlerCollection _eventHandlerCollection;

    public SearchComponent(EventHandlerCollection eventHandlerCollection)
    {
        _eventHandlerCollection = eventHandlerCollection;
    }

    public void Initialize()
    {
        foreach (var eventHandler in _eventHandlerCollection)
        {
            ContentService.Unpublished += eventHandler.Unpublished;
            ContentService.Trashed += eventHandler.Trashed;
            ContentService.Published += eventHandler.Published;
        }
    }
}

Does anyone have an idea on what I missing or has changed?