Fix bug in v2 context for status messages.

Author: msporny

contexts/credentials/v2

@@ -154,28 +154,8 @@
           "@id": "https://www.w3.org/ns/credentials/status#encodedList",
           "@type": "https://w3id.org/security#multibase"
         },
-        "statusMessage": {
-          "@id": "https://www.w3.org/ns/credentials/status#statusMessage",
-          "@context": {
-            "@protected": true,
-
-            "id": "@id",
-            "type": "@type",
-
-            "message": "https://www.w3.org/ns/credentials/status#message",
-            "status": "https://www.w3.org/ns/credentials/status#status"
-          }
-        },
         "statusPurpose":
           "https://www.w3.org/ns/credentials/status#statusPurpose",
-        "statusReference": {
-          "@id": "https://www.w3.org/ns/credentials/status#statusReference",
-          "@type": "@id"
-        },
-        "statusSize": {
-          "@id": "https://www.w3.org/ns/credentials/status#statusSize",
-          "@type": "https://www.w3.org/2001/XMLSchema#positiveInteger"
-        },
         "ttl": "https://www.w3.org/ns/credentials/status#ttl"
       }
     },
@@ -197,7 +177,27 @@
         "statusListIndex":
           "https://www.w3.org/ns/credentials/status#statusListIndex",
         "statusPurpose":
-          "https://www.w3.org/ns/credentials/status#statusPurpose"
+          "https://www.w3.org/ns/credentials/status#statusPurpose",
+        "statusMessage": {
+          "@id": "https://www.w3.org/ns/credentials/status#statusMessage",
+          "@context": {
+            "@protected": true,
+
+            "id": "@id",
+            "type": "@type",
+
+            "message": "https://www.w3.org/ns/credentials/status#message",
+            "status": "https://www.w3.org/ns/credentials/status#status"
+          }
+        },
+        "statusReference": {
+          "@id": "https://www.w3.org/ns/credentials/status#statusReference",
+          "@type": "@id"
+        },
+        "statusSize": {
+          "@id": "https://www.w3.org/ns/credentials/status#statusSize",
+          "@type": "https://www.w3.org/2001/XMLSchema#positiveInteger"
+        }
       }
     },