Describe the bug

When using the Google sheets integration, it's relatively straightforward to break it, and thereby lock a user out of the editor.

Expected behavior

Any user input should not allow errors to be created and the editor should remain usable.

Reproduction

Steps to reproduce the bug.

1. Create an integration with Google sheets
2. Input integration into post editor with several rows selected
3. View valid output within the editor
4. Adjust one of the row IDs to be either 0 or completely blank
5. Save updated data
6. See fatal error
7. Can no longer edit post when returning to the post, or refreshing the page