CASEFLOW-138 Propagate task instructions when task is bulk assigned

[yoomlam]

Resolves CASEFLOW-138

Description

Propagate task instructions when task is bulk assigned

Acceptance Criteria

• Task Instructions Remain When Task is Bulk Assigned

Testing Plan

(See Testing Plan in #15125. Borrowed from Testing Plan in #14523, except include instructions and check for instructions in newly assigned tasks.)

1. Make Jolly Postman an admin

   OrganizationsUser.make_user_admin(User.find_by(css_id: "JOLLY_POSTMAN"), MailTeam.singleton)

2. Log in as jolly postman and go to the mail team queue
3. Go to Case Details for one of the Unassigned cases and grab the UUID from the URL
4. Add instructions to the active task of the selected appeal:

t=Task.find(NNN)
t.update(instructions: ["do good"])

1. Refresh Case Details and click View Instructions to see the instruction.
2. Back in the queue view, click "Assign tasks"
3. Assign some tasks to a user. Set the filters so that the case you modified will be bulk assigned.
4. Confirm tasks were assigned to the user. See the Assigned tab.
5. Open the appeal you modified to ensure the instructions propagated to the new user-task. Check the task instructions in the task tree:

t.children.active.first.instructions

Perform the same Testing Plan in the master branch and check that instructions are not propagated.

User Facing Changes

BEFORE	AFTER

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[lomky]

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