BUG 12738 SQL doesn't work in GRID - Text-Area fields SOLVED

- When trying to establish a field dependency in grid between a Text field and a Text-area field using an external SQL connection, text-area field remains empty.
- Adding query option in the xmlform on a textarea of a grid(validate).

gulliver/system/class.xmlform.php

@@ -1990,11 +1990,12 @@ class XmlForm_Field_Textarea extends XmlForm_Field
 
         foreach ($values as $v) {
             $this->executeSQL( $owner, $r );
-            $firstElement = key( $this->sqlOption );
-            if (isset( $firstElement )) {
-                $v = $firstElement;
+            if (isset( $this->sqlOption )) {
+                $firstElement = key( $this->sqlOption );
+                if (isset( $firstElement )) {
+                    $v = $firstElement;
+                }
             }
-
             $scrollStyle = $this->style . "overflow:scroll;overflow-y:scroll;overflow-x:hidden;overflow:-moz-scrollbars-vertical;";
             $html = '';
             if ($this->renderMode == 'edit') {