Tag LabelSelector with +structType=atomic

Author: jpbetz

api/openapi-spec/swagger.json

@@ -1092,6 +1092,7 @@ type Patch struct{}
 // A label selector is a label query over a set of resources. The result of matchLabels and
 // matchExpressions are ANDed. An empty label selector matches all objects. A null
 // label selector matches no objects.
+// +structType=atomic
 type LabelSelector struct {
 	// matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels
 	// map is equivalent to an element of matchExpressions, whose key field is "key", the

staging/src/k8s.io/apiextensions-apiserver/pkg/generated/openapi/zz_generated.openapi.go

@@ -349,7 +349,7 @@ spec:
 			expectConflictSet: fieldpath.NewSet(
 				fieldpath.MakePathOrDie("metadata", "labels", "app"),
 				fieldpath.MakePathOrDie("spec", "replicas"),
-				fieldpath.MakePathOrDie("spec", "selector", "matchLabels", "app"),
+				fieldpath.MakePathOrDie("spec", "selector"), // selector is atomic
 				fieldpath.MakePathOrDie("spec", "template", "metadata", "labels", "app"),
 				fieldpath.MakePathOrDie("spec", "template", "spec", "containers", fieldpath.KeyByFields("name", "my-c"), "image"),
 			),