LazyNodeWrapper is capable of re-attaching the underlying node in case its session got closed. However, with current logic the node is re-attached to the session from the system context and not to the user's one, which confusing and error prone.

Proposal: try to re-attach the node to the session from the MgnlContext, use system context as a fallback.

This is issue is particularly important for the UI framework improvement effort which encourages the developers to use the nodes directly in the app implementation and LazyNodeWrapper is a handy tool for keeping node alive across requests and is expected to act predictably.