setStyleSheet with image causes leak.

If I have a label and I do setStyleSheet("image: url(:/SomeImage.png);") repeatedly on a 1sec periodic timer, I can see the memory usage going up with "top" command. If you want to see the leak happen faster/slower, you can make the timer fire faster/slower accordingly.

If I replace "image:" with "background-image:", the leak doesn't happen.

A simple project is attached.

This is the first time I create a bug report, so correct me if I did anything wrong.

Observation: I think it's the size of the image that's matter. I tried a really small png image, 124 bytes, in my program and I didn't see the memory creep. So if you can't reproduce the creep with my attached program, please try to replace the image with something bigger.