WebIDE doesn't load a branch

Summary

Currently in master, when accessing an existing branch (master, for example), the branch doesn't get loaded and an error message (poorly styled, but that will be reported separately) is shown instead

On the API end, request to fetch master returns branch properly.

Further analysis reveals that the call to http://localhost:3000/flightjs/flight/ide_terminals/check_config fails with 422. Not sure whether it can be the reason might be the reason for the error, however.

Steps to reproduce

• Open a project in WebIDE
• The error pops up instantly

Example Project

Any project in GDK

What is the current bug behavior?

The error claims the master branch was not found, however, the branch exists and can be retrieved directly from API (using Postman)

What is the expected correct behavior?

The branch should be loaded normally.