diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index a09ae3722d4..3631a6509ee 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -4604,7 +4604,7 @@ abstract class CommonObject
     */
 	function showOptionals($extrafields, $mode='view', $params=null, $keyprefix='')
 	{
-		global $_POST, $conf, $langs;
+		global $_POST, $conf, $langs, $action;
 
 		$out = '';
 
@@ -4633,9 +4633,10 @@ abstract class CommonObject
 						$value=$this->array_options["options_".$key];
 						break;
 					case "edit":
-						// GETPOST("options_" . $key) can be 'abc' or array(0=>'abc')
 						$getposttemp = GETPOST('options_'.$key, 'none');				// GETPOST can get value from GET, POST or setup of default values.
-						if (isset($getposttemp)) {
+						// GETPOST("options_" . $key) can be 'abc' or array(0=>'abc')
+						if (is_array($getposttemp) || $getposttemp != '' || GETPOSTISSET('options_'.$key))
+						{
 							if (is_array($getposttemp)) {
 								// $getposttemp is an array but following code expects a comma separated string
 								$value = implode(",", $getposttemp);
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 552b030e88f..dcba7e20739 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -240,6 +240,16 @@ function dol_shutdown()
 	dol_syslog("--- End access to ".$_SERVER["PHP_SELF"].(($disconnectdone && $depth)?' (Warn: db disconnection forced, transaction depth was '.$depth.')':''), (($disconnectdone && $depth)?LOG_WARNING:LOG_INFO));
 }
 
+/**
+ * Return true if we are in a context of submitting a parameter
+ *
+ * @param 	string	$paramname		Name or parameter to test
+ * @return 	boolean					True if we have just submit a POST or GET request with the parameter provided (even if param is empty)
+ */
+function GETPOSTISSET($paramname)
+{
+	return (isset($_POST['name']) || isset($_GET['name']));
+}
 
 /**
  *  Return value of a param into GET or POST supervariable.
diff --git a/htdocs/societe/card.php b/htdocs/societe/card.php
index 1d447a9ad0f..b08a8b7db1b 100644
--- a/htdocs/societe/card.php
+++ b/htdocs/societe/card.php
@@ -992,7 +992,7 @@ else
         print '<input type="hidden" name="backtopage" value="'.$backtopage.'">';
         print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
         print '<input type="hidden" name="private" value='.$object->particulier.'>';
-        print '<input type="hidden" name="type" value='.GETPOST("type").'>';
+        print '<input type="hidden" name="type" value='.GETPOST("type",'alpha').'>';
         print '<input type="hidden" name="LastName" value="'.$langs->trans('ThirdPartyName').' / '.$langs->trans('LastName').'">';
         print '<input type="hidden" name="ThirdPartyName" value="'.$langs->trans('ThirdPartyName').'">';
         if ($modCodeClient->code_auto || $modCodeFournisseur->code_auto) print '<input type="hidden" name="code_auto" value="1">';
@@ -1402,7 +1402,7 @@ else
 
 			$object->oldcopy = clone $object;
 
-            if (GETPOST('name'))
+            if (GETPOSTISSET('name'))
             {
                 // We overwrite with values if posted
                 $object->name					= GETPOST('name', 'alpha');