[posila] [2.0.21] Asteroid textures are listed twice in variations array and spwan more often

[Ingo-Igel]

The fourth variation of the huge Oxide and Promethium asteroids in the "asteroid.lua" are loaded into the variations array twice in a row and spawn more frequently than the others.

[posila]

Thanks for the report.
Artists confirmed this is not intended, so it is fixed for 2.0.26