Tmux copy/paste in visual selection doesn't seem to be working

[[xdg_config_dir/tmux/tmux.conf]]

```
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "xclip -i -f -selection primary | xclip -i -selection clipboard"
```

Doesn't seem to be working