fix specs

spec/lib/gitlab/import_export/project.json

@@ -60,6 +60,12 @@
       "due_date": null,
       "moved_to_id": null,
       "test_ee_field": "test",
+      "issue_assignees": [
+        {
+          "user_id": 1,
+          "issue_id": 1
+        }
+      ],
       "milestone": {
         "id": 1,
         "title": "test milestone",
@@ -70,12 +76,6 @@
         "updated_at": "2016-06-14T15:02:04.415Z",
         "state": "active",
         "iid": 1,
-        "issue_assignees": [
-          {
-            "user_id": 1,
-            "issue_id": 1
-          }
-        ]
         "events": [
           {
             "id": 487,

spec/lib/gitlab/import_export/project_tree_restorer_spec.rb

@@ -64,7 +64,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
       end
 
       it 'has issue assignees' do
-        expect(project.issues.where(title: 'Voluptatem').first.issue_assignees).not_to be_empty
+        expect(Issue.where(title: 'Voluptatem').first.issue_assignees).not_to be_empty
       end
 
       it 'contains the merge access levels on a protected branch' do

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -506,3 +506,6 @@ ProjectAutoDevops:
 - project_id
 - created_at
 - updated_at
+IssueAssignee:
+- user_id
+- issue_id
\ No newline at end of file