QuickDesigner: Search/Replace short cuts using Editor context

Steps to reproduce:

• open/create Qt Quick Application (using a ui.qml file)
• place cursor onto an empty part of the file or below the closing curly bracket
• switch to Design mode (integrated editor)
• place cursor somewhere on an id and trigger search
  • nothing happens
• switch back to Edit mode
• place cursor at an id or similar and trigger a search
• switch to Design mode (integrated editor) and place cursor somewhere else and trigger search again
  • uses old search as it takes the context from the editor into account

Either disable the Find Usages/Replace functionality for the integrated editor completely or use correct context..