Mapguide Maestro: in map editor, changing layer group name does not update group tag in its layers leading to validation error

[gabrimonfa]

Maestro 3.5b1

In map editor changing the name of a group that has layers inside from "old" to "new" and saving the map produces a validation error saying that layers belong to non-existent group "old".

Opening in XML view the tags <group> of the layers inside the group were not updated to "new".

The expected result is that the tags <group> of the layer are automatically updated to the new group name

[jng]

Fixed r6001