DS crash after deleting a custom preset in project wizard

Steps to reprocude:

• Make sure there are no recents or custom presets (can be done by deleting DS files in AppData\Roaming\QtProject on Windows)
• Click "Create project" in Welcome page
• Click "Save custom preset"
• Click "Save"
• MyPreset is created in custom tab as expected
• While MyPreset is selected in custom tab, click "Save custom preset"
• Name it MyPreset2
• Click MyPreset and "Create"
• Close project by clicking "File -> close all projects"
• Click "Create project" in Welcome page
• There is now a Recents tab consisting MyPreset project, as expected
• Open Custom tab
• Make sure MyPreset is selected and delete it
• Recents tab disappears and no tab is active now, wizard empty
• Click Create -> Design Studio crashes