In "Adjust" dialog the button order is
1. Default values
2. Custom values
3. Save as custom values
In "Adjust Hue/Lightness/Saturation" dialog the button order is
1. Default values
2. Save as custom values
3. Custom values
Please note the swapped buttons "Save as custom values" and "Custom values".

I think "Save as Custom values" should be positioned at the very bottom.