This is a clone of issue OCPBUGS-20342. The following is the description of the original issue:
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Description of problem:

As a part of the forbidden node label e2e test, we execute `oc debug` command to set the forbidden labels on the node. The `oc debug` command is expected to fail while applying the forbidden label. 

In our testing, we observed that even though the actual command on the node (kubectl label node/<node> <forbidden_label>) expectedly fails, the `oc debug` command does not carry the return code correctly (it will return 0, even though `kubectl label` fails with error). 

Version-Release number of selected component (if applicable):

4.14

How reproducible:

flaky

Steps to Reproduce:

1. Run the test at https://gist.github.com/harche/c9143c382cfe94d7836414d5ccc0ba45
2. Observe that sometimes it flakes at https://gist.github.com/harche/c9143c382cfe94d7836414d5ccc0ba45#file-test-go-L39

Actual results:

oc debug return value flakes

Expected results:

oc debug return value should be consistent. 

Additional info: