[BUG] Images fields becomes empty when updating rows with a CSV in a collection type

[xaviermarchal]

Describe the bug
If i have already a row in a collection which contains a logo (image) already defined, if i import data with a csv on this line, the logo become null.

Before import : the logo is defined Importing text data on only the "about" field Result after: no logo anymore

To Reproduce
Steps to reproduce the behavior:

1. Go to a collection defined
2. Click on Import
3. Import the CSV with the following data

id,about
1,Test import

5. See error

Expected behavior

• About is updated
• Logo stays the same
  => about is correctly imported but the logo is set to null

Screenshots

Import "about" is successful

Additional context
Add any other context about the problem here.