Autosave for a devfile works incorrectly

[olexii4]

Describe the bug

Autosave for a devfile works incorrectly.

Che version

• latest
• nightly
• other: please specify

Steps to reproduce

1. Create a new workspace from the devfile

metadata:
  name: wksp-test
apiVersion: 1.0.0

2. Open 'Devfile' tab

3. Simulate a case when you tried to add a new editor component but did not manage to finish in time:

• Paste the following content

metadata:
  name: wksp-test
apiVersion: 1.0.0
components:
  - name: theia
    type: 

• Wait until autosave will be triggered and an error appeared.

Expected behavior

Devfile content is not updated until the user does not finish typing.

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

Additional context

I propose to add a possibility to configure autosave for devfile or turn it off.
Instead of autosave, I have a purpose to save the current state of the devfile editor(simple string) as a temporary workspace data and restore it after page reload

[AndrienkoAleksandr]

+1 Really annoying bug.

[sleshchenko]

Looks like error messages on the first and the second screenshots must be improved on Che Server side. @olexii4 Could you please create a separate issue?

[olexii4]

@sleshchenko I have created
#14350

[amisevsk]

Closely related (duplicate?): #13982

[tsmaeder]

Duplicate of #13982