Fixes #1397 -- Catch and ignore QuestionOption.DoesNotExist

[oliverroick]

Proposed changes in this pull request

• Fixes Catch and ignore QuestionOption.DoesNotExist #1397: When an option for one of the standard select fields (location type, party type, tenure relationship type) was missing from the questionnaire and that same option was used in an entity instance `QuestionOption.DoesNotExist' is thrown when accessing the detail page of that entity. (Other that stated in the bug report this only affects detail pages).
• The exception is caught and ignore. The QuestionOption instance is queried from the database to create multi-language labels. If an option is not present, multi-language labels will not be populated, a case that is handled gracefully on the client-side. That's why it's ok to just ignore the exceptions.

When should this PR be merged

• Anytime

Risks

None

Follow-up actions

None

Checklist (for reviewing)

General

• Is this PR explained thoroughly? All code changes must be accounted for in the PR description.
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Functionality

• Are all requirements met? Compare implemented functionality with the requirements specification.
• Does the UI work as expected? There should be no Javascript errors in the console; all resources should load. There should be no unexpected errors. Deliberately try to break the feature to find out if there are corner cases that are not handled.

Code

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Tests

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Security

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Documentation

• Are changes to the UI documented in the platform docs? If this PR introduces new platform site functionality or changes existing ones, the changes must be documented in the Cadasta Platform Documentation.
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• Are reusable components documented? If this PR introduces components that are relevant to other developers (for instance a mixin for a view or a generic form) they should be documented in the Wiki.

[linzjax]

I can't seem to reproduce this. Could you post the questionnaire that you used?

[alukach]

Tested and reproduced locally, looks good to me!