If logic not supported in action?

I'm trying to make a newly created window stack onto the last existing window (or stack) when there are two windows (or stacks) in the current space. Corresponding command:

`yabai -m signal --add event=window_created action="if [ $(yabai -m query --windows --space | jq '.[].\"split-type\"' | grep none | wc -l | tr -d ' ') -eq 0 ]; then yabai -m window last --stack \$YABAI_WINDOW_ID; echo true >> /tmp/test; fi"`

If there is only one window (or stack), the value of `split-type` will only be `none`, so the result of `$(...)` is larger than 0. Thus the if branch is not taken.

But the reality is that when there is only one window (or stack), the if branch is still taken.

Not sure what went wrong.

Reproduce the event=window_created signal using the supplied action and compare the query output when there is one window or stack versus two. Start by checking how the shell condition, command substitution, and escaped YABAI_WINDOW_ID are interpreted; done means the action's branch behavior matches the documented window count.

Written by the indexing model from the issue text.