Updating an existing catalog with an empty help text field will not remove existing text in that entry
Steps to reproduce
Import an catalog from an xml file into rdmo
Edit the same catalog file which outside of rdmo (with a text editor) and replace the content of a help text entry <help lang="de">Lorem ...</help> with an empty <help lang="de"/> or <help lang="de"></help>
Import the edited (with empty entry) catalog file
Select the catalog in the management UI and brows to the field which was replaced with an empty entry
Updating an existing catalog with an empty help text field will not remove existing text in that entry
Steps to reproduce
<help lang="de">Lorem ...</help>
with an empty<help lang="de"/>
or<help lang="de"></help>