'Your changes will not be saved' alert window when trying to reload a web page

Describe the bug

‘Your changes will not be saved’ alert window when trying to reload web page. The cause of this issue are https://github.com/eclipse/che-theia/pull/634 changes

Che version

• latest
• nightly
• other: please specify

Steps to reproduce

1. Start workspace from any devfile.
2. Try to reload web page.

Expected behavior

The page was reloaded

Runtime

• kubernetes (include output of kubectl version)
• Openshift (include output of oc version)
• minikube (include output of minikube version and kubectl version)
• minishift (include output of minishift version and oc version)
• docker-desktop + K8S (include output of docker version and kubectl version)
• other: (please specify)

Screenshots

Installation method

• chectl
• che-operator
• minishift-addon
• I don’t know

Environment

• my computer
  • Windows
  • Linux
  • macOS
• Cloud
  • Amazon
  • Azure
  • GCE
  • other (please specify)
• other: please specify

[rhopp]

@vzhukovskii This failure is happenig in the legacy java-selenium suite. We still have some tests there… They run as PR check on eclipse/che repo and right now, they are kind of “hidden” - We have a task in the current sprint to improve the reporting from this job.

[rhopp]

IMHO this behavior change is “UX downgrade”. In my opinion, the confirmation should appear only when data loss is at place (aka. some editor is not saved).

Anyway… Until this gets sorted, @SkorikSergey we can put back the previous behavior by setting this in user preferences before actually running the test (the same way, that @Ohrimenko1988 is doing this for example for setting the terminal type to dom)