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A state represents a task being done. If the task represented by A should be performed again it makes ok sense to me to reenter A. And it makes sense that the behaviour of A might be dependent on input.

But a state is not aware of how the state was entered, whether the transition came from B or from itself or something else. You will have to provide this difference as userdata if you need it.

Consider it A really represents the same task both in the beginning and the end.

A state represents a task being done. If the task represented by A should be performed again it makes ok sense to me to reenter A. And it makes sense that the behaviour of A might be dependent on input.

But a state is not aware of how the state was entered, whether the transition came from B or from itself or something else. You will have to provide this difference as userdata if you need it.

Consider it if A really represents the same task both in the beginning and the end.