As best as I can tell, atempting to edit the maximum size of the displayed breasts to smaller then their actual value for the automatic bust image displays a dupelicate set. One set (the smaller ones behind) is the correct size as set by the limit, while the bigger one in front behaves as through the limit was never lowered from its default value.
Entering the bust editor momentarily removes the second pair, but they reappear as soon as I exit the editor.
Save file provided, Game Version: 0.9.030-BACKER-ELECTRON#2767 (glitch also appears in erlier verisons as well)