CN-1670 reproduction in unit tests

        Running /TestCases/ReplacePositionToStepTest.php
                Failed assertion. Expected:
                array(
                        'httpCode' => 200,
                        'output' => '',
                        'data' => array(
                                'data' => array(
                                        'failed' => 0,
                                ),
                                'messages' => array(
                                        array(
                                                'success' => true,
                                        ),
                                ),
                        ),
                )
                Got:
                array(
                        'data' => array(
                                'messages' => array(
                                        array(
                                                'success' => false,
                                        ),
                                        array(
                                                'error' => 'Internal server error',
                                                'id' => null,
                                                'type' => '',
                                                'group' => '',
                                                'data' => array(
                                                        'message' => 'denormalized fields update fail',
                                                        'report' => array(
                                                                'cln_events' => array(
                                                                        1801439851573964686 => array(
                                                                                'candidates_count' => array(
                                                                                        'from' => '2',
                                                                                        'to' => '1',
                                                                                ),
                                                                        ),
                                                                ),
                                                        ),
                                                ),
                                        ),
                                ),
                        ),
                        'httpCode' => 500,
                        'output' => '',
                        'headers' => array(),
                )
                Diff path: httpCode/. Expected: 200, got: 500 at line 574, 731
        FAIL 79.184835195541