MAGE-1151: fix page indexing

Author: damcou

Service/Page/IndexBuilder.php

@@ -38,7 +38,7 @@ public function __construct(
      */
     public function buildIndexFull(int $storeId, array $options = null): void
     {
-        $this->buildIndex($storeId, isset($options['ids'])?: null, null);
+        $this->buildIndex($storeId, $options['ids'] ?? null, null);
     }
 
     /**

Ui/Component/Listing/Column/Data.php

@@ -30,6 +30,7 @@ public function prepareDataSource(array $dataSource)
                         $stringValue = '';
                         foreach ($value as $k => $v) {
                             if (is_string($k)) {
+                                $v = !is_array($v) ?: implode(",", $v);
                                 $stringValue .= '<br>&nbsp;&nbsp;&nbsp; - <strong>' . $k . '</strong> : '. $v;
                             } else {
                                 $stringValue .= $v . ',';