Fix ODS Reader when no DC namespace are defined

ODS files without spreadsheet properties were triggering a fatal error

Fixes #1047
Fixes #1176
Closes #1182

Author: Jerome3

CHANGELOG.md

@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 - Trying to remove a column that doesn't exist deletes the latest column
 - Keep big integer as integer instead of lossely casting to float [#874](https://github.com/PHPOffice/PhpSpreadsheet/pull/874)
 - Fix branch pruning handling of non boolean conditions [#1167](https://github.com/PHPOffice/PhpSpreadsheet/pull/1167)
+- Fix ODS Reader when no DC namespace are defined [#1182](https://github.com/PHPOffice/PhpSpreadsheet/pull/1182)
 
 ## [1.9.0] - 2019-08-17
 

src/PhpSpreadsheet/Reader/Ods/Properties.php

@@ -20,11 +20,10 @@ public function load(\SimpleXMLElement $xml, $namespacesMeta)
         $officeProperty = $xml->children($namespacesMeta['office']);
         foreach ($officeProperty as $officePropertyData) {
             /** @var \SimpleXMLElement $officePropertyData */
-            $officePropertiesDC = (object) [];
             if (isset($namespacesMeta['dc'])) {
                 $officePropertiesDC = $officePropertyData->children($namespacesMeta['dc']);
+                $this->setCoreProperties($docProps, $officePropertiesDC);
             }
-            $this->setCoreProperties($docProps, $officePropertiesDC);
 
             $officePropertyMeta = (object) [];
             if (isset($namespacesMeta['dc'])) {