Draft version stays after publishing.

Steps:
1. Create new LP.
2. Publish it.
3. Edit the LP.
4. Save draft, don't leave editor.
5. Publish.
6. Check versions.
Result: Two versions present, Archived and Published. [OK]

Flow 2:
1. Create new LP.
2. Publish.
3. Edit the LP.
4. Save draft, switch to View mode.
5. From Versions pop-up edit the draft version.
6. Publish.
7. Check versions.
Actual: Three versions present, Archived, Draft and Published.
Expected: Two versions present, Archived and Published.