Many properties are overwritten by qt.props

If I change a property in my own property sheet (e.g. Output Dir for moc), it will be overwritten by qt.props, because qt.props is loaded AFTER all user property sheets. It turns out that I can change properties defined by qt.props only in the project file.

I tried to import the qt.props file BEFORE the user properties, but it doesn't work at all.

P.S. Looks like that the 'Build Config' property is also being overwritten by qt.props. It's always 'Release' for any configuration other than Debug.