Tabs: Horizontal scroll wheel scrolls in wrong direction

When using a horizontal scroll wheel that can be found on some mice, the scroll direction is inverted on the open files tab control. When pushing the wheel to the wheel to the right, the previous file is selected, and pushing the wheel to the left selects the next file. When using the wheel f.e. on the waveform display, it works as expected, i.e. pushing the wheel to the right advances in time and pushing it to the left also scrolls left.