Switch to Master branch button doesn't work when opening a project from a closed branch

[yaustar]

Thread: https://forum.playcanvas.com/t/cant-open-from-closed-branch-switch-to-master-branch/26695

Create a project and add two users to it
Create a branch (b1) and switch to it with User A
Close tab
With User B, close branch b1
User opens the Editor
When they try to click the button to Switch to Master, it doesn't work

Error:

[ellthompson]

Fixed in release 1.21.67