What I did:

• Create a draft
• Create a second draft with different title
• Select the second draft and edit it to be identical
• Create a new draft -> The selected draft was edited instead of a new one added.
• Delete all drafts
• Create a new draft
• Multiple attempts to create a new second draft -> The existing draft was changed instead of a new one added

I suspect it either to be the selection never gets dropped or the list got missformed by 2 identical drafts.