update-children in container%: hash-ref: no value found for key

[bogdanp]

update-children in container%: hash-ref: no value found for key

[Bogdanp]

Thanks for the report! Fundamentally, this was a data race in the destroy path: updates were correctly being queued up using the eventspace queue, but destroys weren't, so orderings where the container state was inconsistent were possible.

The trace on compiled code was misleading (probably due to inlining) and the error was actually raised in get-child (called on line 23). Typically, to debug these types of errors I end up deleting the compiled folders in the project and then run the code with errortrace (which is extremely slow, but at least provides accurate traces).