Thread:Support/Toggle threads on talkpages

When I toggle a thread on my talkpage, the list of answers is very extensive, because not only the subsequent answers are added as branch, but also a branch for every subsequent answers, again with all subsequent answers. This ends up in multiple brancher where only one is: A-B-C-D-E will become A-B-C-D-E,E,D-E,E,C-D-E,E,D-E,E, see Babel. Furthermore, you cannot toggle it again. I don't know whether this is the case for a longer period or since the move.