Honour --force-auth for anonymous commands

Fixes: https://pagure.io/koji/issue/2657

tests/test_cli/test_search.py

@@ -20,10 +20,12 @@ Available search types: package, build, tag, target, user, host, rpm, maven, win
 %s: error: {message}
 """ % (self.progname, self.progname)
 
+    @mock.patch('koji_cli.commands.ensure_connection')
     @mock.patch('sys.stdout', new_callable=six.StringIO)
     def test_anon_handle_search(
             self,
-            stdout):
+            stdout,
+            ensure_connection_mock):
         """Test anon_handle_search function"""
         session = mock.MagicMock()
         options = mock.MagicMock()