more ev3 testing issues

[anikard]

• [x] incorrect error string for item already exists

2. Basic inventory tracking functionality

• [ ] sometimes tag added not persisting on item creation
• [x] 2.3. Managers shall be able to create and delete tags.
• [x] sometimes comments for requests not saving
• [ ] outstanding disbursement by admin to user XX could not be seen by user XX in "Requests made on this item" in 'view item' modal
• [x] list of requests displays name of user, but when click on view-request, name field changes to display username
• [x] 2.10 : users should be able to oversubscribe items when adding to cart --> currently displaying error message "Request quantity of item55 exceeds stock limit"

5. Administrator-defined fields

• [x] default custom fields: location, restock_info
• [x] incorrect limit on lists

6. Global transaction logging

• [x] incorrect log filtering with show more

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