Steps to reproduce
- Go to Content and Data > Forms > Add a new Form
- Add a Paragraph field. Type a content body (for instance: content body 1)
- Add another Paragraph field. Type a different content body (for instance: content body 2)
- Click on the new Paragraph field.
- Click on the first Paragraph field.
Each Paragraph is still keeping their own content body.
Content body from second Paragraph field is copied into the fist one.