[3.4] title_format doesn't work.

[bobdenotter]

The title_format doesn't work anymore on 3.4.

Details

• Relevant Bolt Version: [ 3.4 ]

Reproduction

Set up a content type like:

dummies:
    name: Dummies
    singular_name: Dummy
    fields:
        title:
            type: text
            class: large
            group: content
        slug:
            type: slug
            uses: title
        foo:
            type: text
        selector:
            type: select
            values: [ A-tuin, Donatello, Rafael, Leonardo, Michelangelo, Koopa, Squirtle ]
            multiple: false
            postfix: "Select your favourite turtle(s)."
    title_format: [ foo, selector ]

On 3.3 it shows:

(with 'foo' set to 'Bar', and selector set to 'Donatello')

Bumping it to 3.4 gives:

[GwendolenLynch]

Fixed in #7067