Merge pull request #26 from OneSignal/user_model_fixes

Schema fixes

Author: kesheshyan

api.json

@@ -1,7 +1,7 @@
 {
   "openapi": "3.0.0",
   "info": {
-    "version": "1.2.0",
+    "version": "1.1.0",
     "title": "OneSignal",
     "description": "A powerful way to send personalized messages at scale and build effective customer engagement strategies. Learn more at onesignal.com",
     "contact": {
@@ -140,7 +140,8 @@
           },
           "apns_p8": {
             "type": "string",
-            "description": "iOS: Required if using p8. Base64 encoded p8 key"
+            "description": "iOS: Required if using p8. Base64 encoded p8 key",
+            "nullable": true
           },
           "safari_site_origin": {
             "type": "string",
@@ -2109,6 +2110,10 @@
         "properties": {
           "identity": {
             "$ref": "#/components/schemas/IdentityObject"
+          },
+          "retain_previous_owner": {
+            "type": "boolean",
+            "description": "The request must specify whether the subscription’s previous user should be retained. If so and the subscription is the last subscription for the previous user, then an orphan user will be created. This only applies if the subscription is the previous user’s only subscription. If the previous user had other subscriptions, nothing happens to the user."
           }
         }
       },