* Qual: Improve typing hint for (ext)Object, and allow null
# Qual: Improve typing hint for object, and allow null
As the key "->element" is expected, the object type should be derived from CommonObject.
Also extObject can be nullable
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()
* Fix: Use null instead of 0 for extObject in call to Form::editfieldval()