Cannot assign coach in production mode

[matthewhall79]

1. Run the server in production mode (on the laptop and still on port 8000, but using FLASK_ENV=production flask env and without running yarn start).
2. Navigate to http://127.0.0.1:8000, fill out the 'assign member' form and click 'submit' then 'confirm'.

This directs to a blank page rather than showing the results of the assignment.

[matthewhall79]

The problem appears to be in rendering the AssignLoader, before attempting to make the coach assignment request to the server. Commenting out this setState call in handleSubmitConfirm avoids the problem Assign.js:65.

this.setState({ display: displays.LOADING }, () => {