Se limita el explode de parameters

Command/RenderTemplateCommand.php

@@ -91,7 +91,7 @@ class RenderTemplateCommand extends ContainerAwareCommand
             }
         }
         foreach ($inputParameters as $param) {
-            $pieces = explode(':', $param);
+            $pieces = explode(':', $param, 2);
             if (isset($pieces[0]) && isset($pieces[1])) {
                 $parameters[trim($pieces[0])] = trim($pieces[1]);
             }