Wrestling with a JLIFF serialization of glossary data

<unit id="1">
     <gls:glossary>
       <gls:glossEntry ref="#m1">
         <gls:term source="publicTermbase">TAB key</gls:term>
         <gls:translation id="1" source="myTermbase">Tabstopptaste
         </gls:translation>
         <gls:translation ref="#m2" source="myTermbase">TAB-TASTE
         </gls:translation>
         <gls:definition source="publicTermbase">A keyboard key that is
             traditionally used to insert tab characters into a document.
         </gls:definition>
       </gls:glossEntry>
     </gls:glossary>
     <segment>
       <source>Press the <mrk id="m1" type="term">TAB key</mrk>.</source>
       <target>Drücken Sie die <mrk id="m2" type="term">TAB-TASTE</mrk>.
       </target>
     </segment>
   </unit>