Opacity value change in Appearance Palette with SHIFT held down selects palette contents

[pentool]

In the Appearance Palette, when you try changing the Opacity value using the keyboard up/down arrow with the SHIFT key held down, it only changes the value once, then it starts selecting the Appearance Palette's contents.

1. Draw a shape and select it
2. Open the Appearance Palette
3. Place the cursor into the Opacity value field
4. Hold SHIFT and tap the down arrow key to change the opacity value from 100 to 90
5. Once the value changed to 90%, subsequent tapping on the down arrow key (with SHIFT held) start selecting the palette contents.

In the video I am holding SHIFT and tapping the up/down arrow key:
https://www.youtube.com/watch?v=jZyleesyE-M

VS 1.1.100

[VectorStyler]

@pentool Added this to the backlog.