Incorrect values returned to the form in the Page Security tab

[petira]

If you enter Page Authors in the Security tab, it will be saved correctly in the frontmatter:

permissions:
    authors:
        - author1
        - author2
        - author3

but incorrect values will be returned in Normal mode:

Page Authors:
        - 'author1,author2,author3'
        - 'author1,author2,author3'
        - 'author1,author2,author3'

These values will be saved the next time you send form:

permissions:
    authors:
        - 'author1,author2,author3'
        - 'author1,author2,author3'
        - 'author1,author2,author3'

etc.

[w00fz]

Good catch, thanks. I also transferred the issue here in getgrav/grav since the fix was here.