Steps to reproduce:

• Create/open a project
• Import some 3D asset to project
• Double click the imported 3D component in Components view to edit
• Click gear icon in bottom left corner in UI (open Projects mode)
• Click "Return to Design"
• -> dialog opened as in attached picture
• It feels a bit confusing: why does it inform now that I'm opening .qml file in designer when I don't get this when entering the component file first time from main ui.qml file? Would expect that component file is opened in Designer without any questions.