diff --git a/app/Controller/ObjectsController.php b/app/Controller/ObjectsController.php
index f6fd0a3c8..63c4f4e2e 100644
--- a/app/Controller/ObjectsController.php
+++ b/app/Controller/ObjectsController.php
@@ -133,7 +133,6 @@ class ObjectsController extends AppController {
 		if (empty($template)) {
 			$error = 'No valid template found to edit the object.';
 		}
-
 		// If we have received a POST request
 		if ($this->request->is('post')) {
 			if (isset($this->request->data['request'])) {
@@ -195,7 +194,7 @@ class ObjectsController extends AppController {
 		// In the case of a GET request or if the object could not be validated, show the form / the requirement
 		if ($this->_isRest()) {
 			if ($error) {
-
+				return $this->RestResponse->saveFailResponse('objects', 'add', $eventId . '/' . $templateId, $error, $this->response->type());
 			} else {
 				return $this->RestResponse->viewData($orgs, $this->response->type());
 			}
diff --git a/app/Model/Attribute.php b/app/Model/Attribute.php
index 856641630..ff027c9e4 100644
--- a/app/Model/Attribute.php
+++ b/app/Model/Attribute.php
@@ -659,7 +659,7 @@ class Attribute extends AppModel {
 		}
 		// TODO: add explanatory comment
 		$result = $this->runRegexp($this->data['Attribute']['type'], $this->data['Attribute']['value']);
-		if (!$result) {
+		if ($result === false) {
 			$this->invalidate('value', 'This value is blocked by a regular expression in the import filters.');
 		} else {
 			$this->data['Attribute']['value'] = $result;
@@ -683,8 +683,9 @@ class Attribute extends AppModel {
 		}
 
 		if ($this->data['Attribute']['distribution'] != 4) $this->data['Attribute']['sharing_group_id'] = 0;
-
 		// return true, otherwise the object cannot be saved
+
+		if ($this->data['Attribute']['type'] == 'float' && $this->data['Attribute']['value'] == 0) $this->data['Attribute']['value'] = '0.0';
 		return true;
 	}
 
diff --git a/app/Model/Behavior/RegexpBehavior.php b/app/Model/Behavior/RegexpBehavior.php
index 72196578a..d6e3f4878 100644
--- a/app/Model/Behavior/RegexpBehavior.php
+++ b/app/Model/Behavior/RegexpBehavior.php
@@ -10,7 +10,7 @@ class RegexpBehavior extends ModelBehavior {
 
 	private $__allRegexp = array();
 
-	public $excluded_types = array('sigma');
+	public $excluded_types = array('sigma', 'float');
 
 	public function setup(Model $model, $config = null) {
 		$regexp = new Regexp();