"007" MARC bib field for type "g - Projected Graphic" position 06 allows entering more than 1 character

Overview: 06 position of “007” MARC bib’s field for type "g - Projected Graphic" must allow entering only 1 character.
See

Steps to reproduce:

1. Log in into Snapshot environment as admin

2. Go to “Inventory” app

3. Create/Edit/Derive MARC bib record

4. Add a “007” field

5. Change the “Type” to “g - Projected graphic”

6. Try to add multiple characters in “MfS” box

7. Click on the “Save & close” button

Expected result: User can add only one character in 06 position of “007” field (“MfS” box) AND record saved.
Actual result: User can add more than one character in 06 position of “007” field (“MfS” box) AND following error is returned from BE: "Invalid Medium for sound field length, must be 1 characters"

See attached screenshot: