Rudder

On Rudder 2.6 with Workflow activated, upgrading a Technique code with changes in the attributes in the same version return an error message:
The form contains some errors,[...] could not save change request[...] java.util.NoSuchElementException: key not found: MY_NEW_ATTRIBUTE_WITHOUT_VALUE

To add value to the new attribute, I need to save the Directive with the new version of the Technique but this error message prevent me to do it.