Fact : opening the content type create a draft

Then there are several way to quit the page
1- Clicking on "cancel" : a green notification appear whith the notification "draft successfully deleted"
2- Exiting by clicking on whatever link of the navigation : the draft seems to remains in the database

In case 1, everything seems to be ok : the content type can be deleted and the content type group which contained this only content type can be deleted too.

In case 2 there is a bug :
The content type can be deleted, the content type group containing it cannot be deleted. Error :
Cannot delete Content type group "my content type group" as it still contains Content types.

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Summary, two issues here:

• Improvment: Avoid that users are able to click on other links when editing content type drafts
• bug: Repository should also delete drafts when deleting content type