Attribute viewer config editor doesn't show the label of extended attributes

[helje5]

In: Person Viewer / Attributes / Configure

This config:

      <dict>
        <key>key</key> <string>27 Auftrag bis</string>
        <key>type</key><string>1</string>
      </dict>
      <dict>
        <key>key</key>  <string>30_photo_permission</string>
        <key>label</key><string>Fotoerlaubnis</string>
        <key>type</key> <string>2</string>
      </dict>

Shows as:

E.g. when an explicit label is used, this doesn't show. It does properly show in the viewer itself: