* write tests that invalid answers are cleared when the start date of a log is changed
* clear invalid answers when the start date of a log is changed
* correct error
* undo previous work to take new direction
* write tests to cover updated functionality of method in form to reset values when they are not routed to or when answers to radio questions are no longer valid
* update method in form to improve readability and to ensure that when the answers to radio questions are no longer valid, taht they are cleared
* add back an "end" deleted by mistake and fix a linting issue
* make some minor copy and variable name corrections
* fix a broken test after updates
* remove bulk upload tests for adding validations to unpermitted values to radio questions, these are now being cleared before validation
* fix some tests broken after rebasing
* add step to age questions in sales
* remove list of question ids from the form that should not be cleared, this information should be held on the questions themselves
* rename variables
* rename instance variable to be nice and long
* minor changes after rebase
* Add min and max to age2 + questions
* validate that under 16s are economic children
* Update factory
* Update test
* Update ecstat, relationship and age validation
* Enable multiple inferred check answers values
* lint and add new conditions to check answers for age1
* Rename method
* Refactor inferred answer value
* rebase update
* update inferred_check_answers_value after rebase
* Move the method to private
* Add a missing test
* rebase changes
* Add prefers not to say as the displayed value for all household members
* update [0] to .first
* replace [0] with .first
* Display person 2, 3, 4 age question if their details are known
* Infer check answers value for age questions as 'Not known'
* Hide age known question in check answers if it is answered yes or no
* Add card numbers to household characteristics question
* Update gender identity depends on
* lint
* Add a field to completed sales log in factory
* Update person 1 gender identity to depend on the people count
* Do not show buyer 2 questions if it is not a joint purchase