Cannot delete a translated xclass document

Reproduction steps:

1. Using an Admin user being an advanced user
2. Create a page Main.XClass with a single property
3. Create a page Main.XObject containing an xobject of type Main.XClass
4. Go to administration -> Content -> Localization, and configure the wiki to multilingual with French and English languages
5. Go to Main.XClass and translate the page in french
6. From the french version of Main.XClass click on Other actions -> Delete
7. When asking for removing the xclass, click on the checkbox to select the page and then click on confirm

Obtained result:

• the UI displays done, but nothing has been deleted

Expected result:

• there's two possibilities:
  1. either the deletion on step 6 should be immediate and should concern only the translation page, since the translation itself does not contain the xclass properties, so it's safe and there should not be any question
  2. or the deletion should actually delete all translation pages

Note that solution 1 probably makes more sense since when deleting a translation page, it only deletes the translation, not all pages.