When the editor changes are not saved and exit the application, clicking the confirm button does not take effect

[zhaomenghuan]

Bug Description:

When I modify the problem in the editor without saving, click the menu bar to exit the application, and the pop-up'Are you sure you want to quit?' pops up. Click the yes button to exit normally.
View devtools error message as follows:

After using the system to forcibly exit the application, check the process information, the background process did not exit normally.

Steps to Reproduce:

1. Run the theia repository examples/electron project.
2. Modify the project file without saving, ⌘ + Q quit.

Additional Information

• Operating System: mac OS
• Theia Version: v1.4.0

[vince-fugnitto]

@zhaomenghuan thank you for reporting the issue, it is already registered here: #8186
Closing as it is a dupplicate.