Fix broken mirror specific version arg

cmd/aro/mirror.go

@@ -99,9 +99,19 @@ func mirror(ctx context.Context, log *logrus.Entry) error {
 					Payload: version.InstallStream.PullSpec,
 				})
 			} else {
+				vers, err := version.ParseVersion(arg)
+				if err != nil {
+					return err
+				}
+
+				node, err := pkgmirror.VersionInfo(vers)
+				if err != nil {
+					return err
+				}
+
 				releases = append(releases, pkgmirror.Node{
-					Version: arg,
-					Payload: arg,
+					Version: node.Version,
+					Payload: node.Payload,
 				})
 			}
 		}

pkg/mirror/graph.go

@@ -75,3 +75,19 @@ func AddFromGraph(min *version.Version) ([]Node, error) {
 
 	return releases, nil
 }
+
+// VersionInfo fetches the Node containing the version payload
+func VersionInfo(ver *version.Version) (Node, error) {
+	nodes, err := AddFromGraph(ver)
+	if err != nil {
+		return Node{}, err
+	}
+
+	for _, node := range nodes {
+		if strings.EqualFold(node.Version, ver.String()) {
+			return node, nil
+		}
+	}
+
+	return Node{}, fmt.Errorf("version '%s' not found", ver.String())
+}