Trying to delete a MO containing active jobs doesn't show the warning at UNESCO's catalogue #627
Description
Steps to reproduce it:
- Create a new MO.
- Access to it at the UNESCO's catalogue view.
- While it has one o more active jobs try to delete it.
Error: A MO with active jobs can't be deleted (this works fine) but it should show a warning as it does at the series view. It seems the delete button is not working properly beacuse the view reloads and the MO is still there and any warnings were shown.