fish badly handles terminal line settings (stty) in compound commands

[0xD4]

Using fish version 1.22.3-3 in Ubuntu version 8.04.2

See the following commands, with their outputs and comments
> stty
speed 38400 baud; line = 0;
-brkint -imaxbel iutf8
> cd ./;stty # look at the 2 extra lines here, that should not be here !
speed 38400 baud; line = 0;
min = 1; time = 0;
-brkint -imaxbel iutf8
-icanon -echo
> cat (cd ./;stty|psub) # for some reason, this shows the normal output
speed 38400 baud; line = 0;
-brkint -imaxbel iutf8

I noticed this when I did something along the lines of
> cd some/directory/;ftp
and I could not see what I was typing at the prompt.