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Bug
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    Resolution: Fixed
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P2: Important
 - 
    6.8.0 FF
 - 
    None
 
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        4d9b68079 (dev), 7c6d4704d (6.7)
 
In the manual test qmldynamicdata, only a white screen will be displayed. This error message appears in the application output:
- main.qml:132:13: Cannot override FINAL property
 - property int mouseX : -1
 
I was able to make the application run properly by renaming "mouseX" in line 132 and "mouseY" in line 133.