Difference between 86644, 92411 and 44728

[Jaco van der Molen]

Hi,

Concerning bracket 1x2 - 2x2 down

A mysterious question, perhaps not at all that relevant, but I found


- 44728 has two supports underneath
- 92411 has three

In LDraw 86644, 92411 and 44728 look all the same and have 2 supports.

- 86644 is the number for transparent pieces.

I even found there supposed to be a 21712.

I don't mean to nitpick, but should we add the 3rd support to 92411?
Does the 3rd support have a function on certain models?

And should there be yet another alias 21712?

Just wondering....