Do not schedule project import when migrating using GitLab Migration

  - When migrating projects using GitLab Migration an exception is raised
    NoMethodError undefined method `start_with?` that is caused by
    Projects::CreateService
  - Fix this bug by not scheduling project import in this case

Changelog: fixed

app/services/projects/create_service.rb

@@ -243,7 +243,7 @@ module Projects
 
     def import_schedule
       if @project.errors.empty?
-        @project.import_state.schedule if @project.import? && !@project.bare_repository_import?
+        @project.import_state.schedule if @project.import? && !@project.bare_repository_import? && !@project.gitlab_project_migration?
       else
         fail(error: @project.errors.full_messages.join(', '))
       end

spec/services/projects/create_service_spec.rb

@@ -376,6 +376,18 @@ RSpec.describe Projects::CreateService, '#execute' do
 
       imported_project
     end
+
+    describe 'import scheduling' do
+      context 'when project import type is gitlab project migration' do
+        it 'does not schedule project import' do
+          opts[:import_type] = 'gitlab_project_migration'
+
+          project = create_project(user, opts)
+
+          expect(project.import_state.status).to eq('none')
+        end
+      end
+    end
   end
 
   context 'builds_enabled global setting' do