CARDS-2571: Reference Questions do not work inside Conditional Sections

[acrowthe]

• Update reference question initialization code to check for unlinked reference questions any time a form is edited, not just when a form is created
  • Search for any reference questions on the form that do not have an answer
  • Check if the missing questions have an existing answer section. If so, generate an answer
  • Try to find a source answer for any existing or newly created unanswered reference answers
    • Prioritize pulling source answers from forms that are already referenced by other reference answers in this form for consistency
• Add test case in ReferenceTestCopied form

To test:

1. Launch with test forms
2. Generate a couple instances of ReferenceTestUser forms with the last form having unique text answers
3. Generate a ReferenceTestCopied form.
   a. Make sure the referenced text answers are from the most recent User form
   b. Do not fill out the Should the conditional section be satisfied answer
4. Generate at least 1 more instance of ReferenceTestUser forms with different text answers
5. Edit the existing ReferenceTestCopied form and set Should the conditional section be satisfied to true
6. Save and close the form
7. Open the Copied form in view mode. Ensure the last section is present and contains the unique text answer from step 2.

Previous (incorrect) behaviour:

• In step 7 the last section would be present but would never contain an answer

[sashaandjic]

in the step #7, the section does not contain text answer from step #2. It shows the text answer from the step #4.

[acrowthe]

Improved testing steps to check that the right text answer is being copied:

1. Launch with test forms and bin/browser enabled
2. Generate a single ReferenceTestUser form with unique text answers.
   a. Take note of this original user form's node name in bin/browser
   
3. Generate a ReferenceTestCopied form
   a. Make sure the referenced text answers are from the most recent User form
   b. Do not fill out the Should the conditional section be satisfied answer
   c. Take note of the newly created form's node name. This copied form should be ignored in step 4
   
4. Generate at more instance of ReferenceTestUser forms with different text answers until one of the new nodes appears above the original user form in bin/browser. This may take many new forms as the position of new forms is random
   
5. Edit the existing ReferenceTestCopied form and set Should the conditional section be satisfied to true
6. Save and close the form
7. Open the Copied form in view mode. Ensure the last section is present and contains the unique text answer from step 2.

[sashaandjic]

Bug on step 6:

[acrowthe]

Could not reproduce the bug after latest rebase and related changes - please let me know if you encounter it again.