Netlify-cms: Default values don't work inside lists

[Herohtar]

Describe the bug
Default field values for list items do not show up.

To Reproduce
Steps to reproduce the behavior:

1. Create a collection with a list
2. Give the list item a field and specify a default value
3. Add an item to the list in the CMS
4. No default value shows up

Expected behavior
The field should have the default value that was specified.

Screenshots

Applicable Versions:

• Netlify CMS version: 2.0.9
• Git provider: GitHub
• OS: Windows 10
• Browser version: Firefox 62.0b19, Chrome 68

CMS configuration

backend:
  name: git-gateway
  branch: master

media_folder: "public/uploads"
public_folder: "/uploads"

collections:
  - label: "Test"
    name: "test"
    folder: "content/test"
    create: "true"
    fields:
      - {label: "Title", name: "title", widget: "string", default: "My default title"}
      - label: "List"
        name: "list"
        widget: "list"
        fields:
          - {label: "Title", name: "Title", widget: "string", default: "My default title"}

Additional context
I've tested with boolean and string widgets, but I believe it applies to every type.

[MitchellCash]

This might also relate to #1649. We expect all field values to also work even when the field is in a list, object, etc.

[erquhart]

Wow I did not know this was the case, thanks for reporting.

[vai0]

We seem to be having the same issue with image widgets inside an object that is inside a list.

- label: "/resources/"
  name: "resources"
  file: "frontend/src/content/pages/resources.yml"
  fields:
    - label: "Resources Data"
      name: "resourcesData"
      widget: "list"
      fields:
        - label: "Images"
          name: "images"
          widget: "object"
          fields:
            - label: "Featured Logo"
              name: "feat_logo"
              widget: "image"
              default: "https://via.placeholder.com/480x320"
              required: false

Netlify-cms version: 2.9.0

[barthc]

@vai0 default values only work for folder collections and show up while trying to create a new entry.

[jonaseltes]

@barthc Any specific reason it's only been implemented for folder collections? Find it quite a valuable feature for any collection and widget types.

[erquhart]

Default values only apply when you're creating a new entry through the CMS. File type collection entries can't be created through the CMS, by virtue of what they are - pointers to individual existing files.

_{Sent with GitHawk}

[jonaseltes]

@erquhart I was assuming it would apply for list children at least? The same way it's exemplified in the Docs over at https://www.netlifycms.org/docs/widgets/#list ? Probably I'm clearly misunderstanding something...

[madikarizma]

I can also confirm this issue, but specifically when adding new list items. See https://github.com/netlify/netlify-cms/issues/2291#issuecomment-497983785

[erquhart]

Ah, I see. It may be that we're not attempting to populate default values for new list items in any context - can you open a new issue for this? This issue is about defaults not working for lists at all (eg. initial items blank on new entry creation), which was fixed, and #2291 was not about list items.