Opening git commit editor after Qt Quick Designer makes Creator unresponsive

1. Open a qml file.
2. Go to Design mode.
3. Go to Edit mode.
4. Change and save the file.
5. Select "Tools" -> "Git" -> "Local Repository" -> "Commit..." from the menu.
   Creator becomes unresponsive. Without using the Qt Quick Designer beforehand, the git commit editor does not show this behavior.

Creator should always remain responsive.