File uploads disappearing when used inside repeater field on a multipage form

[seantimlin]

Describe the bug

I have a multi-page form with the save button enabled. When I use the save button, the file uploads on the current page get saved correctly. However, the file uploads disappear when I submit to go next or back.

Steps to reproduce

1. Create a multipage form
2. Add repeater field with file upload child field
3. Submit field to go next/back

Form settings

• Multi-page form: Yes
• Submission Method: Page Reload
• Client-side Validation: Yes
• Custom Form Templates: Yes

Craft CMS version

4.4.11

Plugin version

2.0.29

Multi-site?

No

Additional context

No response

[engram-design]

This would be the correct behaviour for file-page forms. This is because we can't populate a <input type="file"> with already-uploaded files. Which is why when navigating back a page in a form, you'll be shown the following:

When proceeding, the file won't be removed (it's already been uploaded), so there's no issue. Or, are you seeing something different on your end?

[seantimlin]

When I go back/next and then return to the page with the file upload field, it's empty. The incomplete submission in the CP has no files listed either. The repeater instances are saved, but the files are gone.

[engram-design]

Ah yes, I see what you mean now. That's quite strange behaviour, and from what I can tell, that seems to be coming from the parent Assets field (which we inherit from Craft). I'll investigate.

[pwtStefanPeters]

@engram-design I have this issue as well. I'm running formie v2.1.6. However, if I downgrade to v2.1.3 the problem disappears.