[data-import] Importing an Exported (JSON) Flow does not work

[nbarry-mc]

• I've read the common issues and the one I'm about to create is not one of those documented.
• I've read the release note and the one I'm about to create is not already fixed.

Describe the bug
When attempting to import a flow, using exported JSON, an error is recieved.

To Reproduce
Steps to reproduce the behavior:

1. Export flow data and copy JSON result. E.g.
   SELECT Id, FullName, Metadata FROM Flow WHERE Id = 'xyz'
2. Attempt to import via Tooling API, using above JSON, and the following error is received when pasting.
   

Expected behavior
Exported data can be re-imported.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [Windows]
• Browser [Edge]