Variant property names get lost when moving variants between cells in a component set having the new grid applied to it

I have an icon library that I am organizing, and I thought the new grid Auto-layout feature would help organize the icon sizes. Set the grid on the Component Set to use a 2x7 (2 columns, 7 rows) layout. Then, I select all of the variants and drag the top-left selected variant into the top-left cell on the grid. All of the variants nest themselves in the grid cells magically as expected. But what is unexpected is that the property names are blown away and reset to Figma’s default naming convention while the property values stay intact.