Download Schema feature exports broken/incompatable schemas

[mikesealey]

Checklist

• [x] I have searched budibase discussions and github issues to check if my issue already exists

Hosting

• Self
  • Method: docker single image

Describe the bug Using the Download Schema feature from the BB data section results in schemas that are incorrect, incompatible, feature duplicate column names, etc

To Reproduce Steps to reproduce the behavior:

1. (From a project that already has an external data connection to an MS SQL database)
2. Go to the data tab
3. click on the external data source
4. settings
5. Download your schema

Expected behavior A valid schema should be downloaded

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

App Export No export available/applicable

Desktop (please complete the following information):

• OS: MacOS
• Browser Chrome
• Version 129.0.6668.70 (Official Build) (arm64)

Additional context This issue was discovered as part of a support issue, and recreated here by BB-CSE E