Two confirmation messages when deleting the last item of a document

[JoelleDosimont]

Describe the bug
When deleting the last item of a record, there is 2 confirmation messages "Do you really want to delete this record?" and we need to refresh the page to activate the "Delete" button of the bibliographic record.

To Reproduce

1. Go to a record with only one item
2. Delete the last item
3. See the 2 confirmation messages that follow each other (one for the item, one for the holding I guess). If you confirm the delete for the 2nd messages, it spins forever.
4. See that the "Delete" button of the bibliographic record is not activate. You need to refresh the page.

Expected behavior
There should be only one confirmation message. The holding is deleted automatically if there is no more item attached.
The "delete" button should then be automatically activated (as there is no item attached).

Context

• server: ils.test.rero.ch and ilsdev.test.rero.ch