Nick O'Leary 84771f5864 Flows/subflows must preinitialise their context objects ... Fixes #2513 If a node inside a subflow accessed its context object in its constructor, the subflow-instance flow context would not yet have been created. This would cause a place holder context to get created on its behalf, but that place holder doesn't have its parent set properly. This then breaks the usage of $parent inside such a subflow. This fix has changed it so flows (and subflows) create their flow context as part of their initial creation. That ensures it exists when individual nodes from the subflow are created, allowing them to safely access their context. This has also fixed a related issue where any attempt to use $parent to access beyond the root parent would seemingly hang as the callback was never being called. This would cause messages to get stuck in flows. The fix ensures the callback is used in the root context objects and undefined is returned.		2020-03-27 23:47:12 +00:00
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node_modules	Flows/subflows must preinitialise their context objects	2020-03-27 23:47:12 +00:00