Q&A: bugged "Show more comments" after converting answer to comment

Hi,

Clicking "Show more comments" link removes all comments to Caroleigh's answer from display at this Q&A. For me, using Win7 Chrome at least.

The sequence to get this was fairly complicated...

1) posted comment to Caroleigh's reply; deleted it

2) posted another comment to Caroleigh's reply; converted it to answer, in order to edit it

3) edited answer; attempted to convert it back to comment, attaching under Caroleigh's answer - the conversion appeared (at least in UI) not to go through (my answer still stayed answer)

4) once again attempted to convert answer back to comment, attaching under Caroleigh's answer - this time it went through