reverted last track changes

Author: mnajdova

packages/material-ui-unstyled/src/SliderUnstyled/SliderUnstyled.js

@@ -156,14 +156,13 @@ const useSliderClasses = (props) => {
       [classes['marked']]: marked,
       [sliderUnstyledClasses['vertical']]: orientation === 'vertical',
       [classes['vertical']]: orientation === 'vertical',
-    }),
-    rail: clsx(sliderUnstyledClasses['rail'], classes['rail']),
-    track: clsx(sliderUnstyledClasses['track'], classes['track'], {
       [sliderUnstyledClasses['trackInverted']]: track === 'inverted',
       [classes['trackInverted']]: track === 'inverted',
       [sliderUnstyledClasses['trackFalse']]: track === false,
       [classes['trackFalse']]: track === false,
     }),
+    rail: clsx(sliderUnstyledClasses['rail'], classes['rail']),
+    track: clsx(sliderUnstyledClasses['track'], classes['track']),
     mark: clsx(sliderUnstyledClasses['mark'], classes['mark']),
     markActive: clsx(sliderUnstyledClasses['markActive'], classes['markActive']),
     markLabel: clsx(sliderUnstyledClasses['markLabel'], classes['markLabel']),