Issue Summary

The default repository dropdown within a project's settings doesn't allow for stopped/disabled repositories. This causes an issue when trying to update any other setting as saving results in the default repository being updated.

Steps to Reproduce

1. Create a project with default repository "x"
2. Stop indexing repository "x"
3. Update settings for project (without the intention of updating the default repository)

Expected Results

You are able to update the project without updating the default repository

Actual Results

The default repository will change to whatever is the top of the generated list of enabled repositories.

Workaround

Re-enable/Restart the repository before making any changes in the settings for the project.