Creator crashes when opening Designer after making small changes to qml file

Steps to reproduce:

• create Qt Quick 2 UI from wizard
• switch to Designer, wait for preview coming up and switch back to Edit
• mark the complete Text element by keys and move them using the keyboard into the MouseArea
• add empty lines before and after the items (except for the surrounding Rectangle) - final qml file should look like attached one
• save file and put the cursor right before the closing bracket of onClicked (line 11)
• switch to Designer

Current result:

• Creator crashes (see attached Mac crash report)