yank_action copy-pipe set, but still exiting copy mode after selection

I am using tmux 3.2 and have set `set -g @yank_action 'copy-pipe'` in my conf, but after selection it still exits the copy mode.
I am using similar configuration on tmux 2.7 on another host, where after setting `set -g @yank_action 'copy-pipe'` tmux remains in copy mode after selecting a bunch of text until I press `q or Enter`

I'd expect same behaviour between 2 tmux versions.