Fix undefined property notice in L10n\L10n

diff --git a/src/Core/L10n/L10n.php b/src/Core/L10n/L10n.php
index e1a86594720841cca23dc1420e8264b1a2b34665..a7bbed9af738ceec5fe77392e1b4df59cb8c68a0 100644 (file)
--- a/src/Core/L10n/L10n.php
+++ b/src/Core/L10n/L10n.php
@@ -120,7 +120,7 @@ class L10n
                        return;
                }
 
-               if (!$this->langSave) {
+               if (empty($this->langSave)) {
                        $this->langSave    = $this->lang;
                        $this->stringsSave = $this->strings;
                }
@@ -140,8 +140,8 @@ class L10n
                $this->strings = $this->stringsSave;
                $this->lang    = $this->langSave;
 
-               unset($this->stringsSave);
-               unset($this->langSave);
+               $this->stringsSave = null;
+               $this->langSave = null;
        }
 
        /**