che: Restart workspace fail (OpenShift Dedicated, minishift)

Describe the bug

Got error message during restarting early created workspaces. This reproduced not each time need to repeat restarting several times.

Che version

latest
nightly - 7.11.0-SNAPSHOT
other: please specify

Steps to reproduce

Create workspace
Stop workspace
Try to restart it (probably need to repeat several times)

Got this error log:

Error: Failed to run the workspace: "Failure executing: POST at: https://172.30.0.1/api/v1/namespaces/eclipse-che/secrets. Message: object is being deleted: secrets "workspacetim1cx2edjv0re97-sshprivatekeys" already exists. Received status: Status(apiVersion=v1, code=409, details=StatusDetails(causes=[], group=null, kind=secrets, name=workspacetim1cx2edjv0re97-sshprivatekeys, retryAfterSeconds=null, uid=null, additionalProperties={}), kind=Status, message=object is being deleted: secrets "workspacetim1cx2edjv0re97-sshprivatekeys" already exists, metadata=ListMeta(_continue=null, remainingItemCount=null, resourceVersion=null, selfLink=null, additionalProperties={}), reason=AlreadyExists, status=Failure, additionalProperties={})."

Expected behavior

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)

oc version

Client Version: version.Info{Major:"4", Minor:"1+", GitVersion:"v4.1.0+b4261e0", GitCommit:"b4261e07ed", GitTreeState:"clean", BuildDate:"2019-07-06T03:16:01Z", GoVersion:"go1.12.6", Compiler:"gc", Platform:"darwin/amd64"}

Server Version: version.Info{Major:"1", Minor:"16+", GitVersion:"v1.16.2", GitCommit:"4320e48", GitTreeState:"clean", BuildDate:"2020-01-21T19:50:59Z", GoVersion:"go1.12.12", Compiler:"gc", Platform:"linux/amd64"}