When I use busybox and switch editing mode to vi via set -o vi then tab completion stops working. When I switch back set -o emacs then tab completion starts working again.
# set -o vi
# ls -l <TAB><TAB>
# set -o emacs
# ls -l <TAB>
.ash_history .ssh file2
.bash_history file1 file3
Is it possible to use tab completion in vi mode in busybox?