Description of problem:
The loki-operator can be upgraded. It raise error in csv.status
            {
                "lastTransitionTime": "2022-04-13T09:41:34Z",
                "lastUpdateTime": "2022-04-13T09:41:34Z",
                "message": "install strategy failed: Deployment.apps \"loki-operator-controller-manager\" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string

{\"app.kubernetes.io/instance\":\"loki-operator-v5.4.0-36\", \"app.kubernetes.io/managed-by\":\"operator-lifecycle-manager\", \"app.kubernetes.io/name\":\"loki-operator\", \"app.kubernetes.io/part-of\":\"cluster-logging\", \"app.kubernetes.io/version\":\"5.4.0-36\", \"name\":\"loki-operator-controller-manager\"}

, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable",
                "phase": "Failed",
                "reason": "InstallComponentFailed"
            }
        ],

 

Version-Release number of selected component (if applicable):
loki-operator.5.4.0-34 --> loki-operator.5.4.0-36

How reproducible:
Always

Steps to Reproduce:
1) Build index image v5.4.0-34 and create catalogsource.
opm index add --bundles registry-proxy.engineering.redhat.com/rh-osbs/openshift-logging-loki-operator-bundle@sha256:5dd9ca162ae89fe09551b55cad3b1d4dabb3dcfb87417e1e606ee435cd18521b --tag quay.io/<repo>/loki-index:v5.4.0-34 -c podman

cat <<EOF | oc create -f -
apiVersion: operators.coreos.com/v1alpha1
kind: CatalogSource
metadata:
  name: loki-registry
  namespace: openshift-marketplace
spec:
  image: quay.io/${repo}/loki-index:v5.4.0-34
  publisher: Red Hat
  sourceType: grpc
  updateStrategy:
    registryPoll:
      interval: 10m0s
EOF
      
2) subscribe loki-registry and deploy loki-operator
3) build index image v5.4.0-36 and update catalogsource.
opm index add --bundles registry-proxy.engineering.redhat.com/rh-osbs/openshift-logging-loki-operator-bundle@sha256:89ac081819b8061f115ec2defbe2dab132efdbcb6d944bd92d654c0d1cce1a11 --tag quay.io/<repo>/loki-index:v5.4.0-36  -c podman
cat <<EOF | oc apply -f -
apiVersion: operators.coreos.com/v1alpha1
kind: CatalogSource
metadata:
  name: loki-registry
  namespace: openshift-marketplace
spec:
  image: quay.io/${repo}/loki-index:1
  publisher: Red Hat
  sourceType: grpc
  updateStrategy:
    registryPoll:
      interval: 10m0s
EOF    
4) Wait until the CSV is updated.
oc get csv -n openshift-operators-redhat
oc get csv loki-operator.5.4.0-36 -o json -n  openshift-operators-redhat

Actual results:
The loki-operator can be upgraded.
$oc get csv
NAME                               DISPLAY                            VERSION     REPLACES                          PHASE
elasticsearch-operator.5.4.0-146   OpenShift Elasticsearch Operator   5.4.0-146   elasticsearch-operator.5.3.6-44   Succeeded
loki-operator.5.4.0-34             Loki Operator                      5.4.0-34                                      Replacing
loki-operator.5.4.0-36             Loki Operator                      5.4.0-36    loki-operator.5.4.0-34            Failed