No Button to Start Workspace When In-Progress Prebuild Finishes

Bug description

When a user goes to start a new workspace and a prebuild is in-progress for the context the user will see a 'prebuild in-progress' screen. When the prebuild finishes no button or option shows to then start up a workspace from that prebuild. Even refreshing the page may not show the prebuild has been completed, they may instead see that a new prebuild has been started and thus the cycle continues.

Steps to reproduce

1. Setup a project for a context.
2. Make some commits and pushes that will result in prebuilds kicking off.
3. Attempt to start a new workspace from prebuilds that are in-progress.
4. Observe you see the prebuild in-progress page.
5. Observe when the prebuild finishes that there's no button to then start a workspace from that prebuild.

Workspace affected

No response

Expected behavior

I would expect that once a prebuild is finished I see a button or option that then lets me start a new workspace from that prebuild.

Example repository

No response

Anything else?

No response

Front conversations

Reproduce the prebuild-in-progress screen using the listed steps, then trace the workspace-start flow that renders it. Check what happens when the prebuild finishes and after refreshing the page. Done means a clear option appears to start a workspace from the completed prebuild without repeatedly starting another prebuild.