TODO(bhenning) in core/domain/stats_domain.py: Monitor sizes (lengths of submitted_answer_list) of these objects and determine if we should enforce an upper bound for submitted_answer_list.

[poloreoyeniji]

There is a potential need for the optimization of the StateAnswers class used to store submitted answers within an exploration state. The StateAnswers class stores a list of SubmittedAnswer objects within the submitted_answer_list attribute. There is currently no limit on the size of this list. Unbounded growth of the submitted_answer_list could lead to unexpected behaviour, especially when dealing with a large number of answers. We need to monitor the sizes encountered for the submitted_answer_list. Then, based on the monitored data, evaluate whether enforcing an upper bound on the size of submitted_answer_list is beneficial.

[seanlip]

Closing because this doesn't follow expected issue-filing conventions.