Console message hiding not working in the QML Debugger Console

Test steps:
1. Create a new 'Qt Quick UI Prototype' project
2. Start debugging the project (F5)
3. Select View -> Output -> QML Debugger Console
4. Input the following line to QML Debugger Console:
console.info("info message"); console.warn("warning message"); console.error("error message")

Result:
1. Messages are displayed properly (pic1.png)
2. Hide info messages -> works ok. info messages are hidden (pic2.png)
3. Hide warning messages -> warning messages are not hidden (pic3.png)
4. Enable warning messages -> warning messages are hidden (pic4.png)
5. Hide error messages -> error messages are not hidden (pic5.png)
6. Enable error messages -> error messages are hidden (pic6.png)