"Adaptable" key bindings changes existing keybinding

[vigilancer]

Adaptive thing should be working only if binding was not set. But it ignores existing key if exist and rebind 'last-window'.

How to reproduce: add to tmux: ... unbind C-b set -g prefix C-z bind C-z send-prefix ... unbind z bind-key z resize-pane -Z ... set -g @plugin 'tmux-plugins/tmux-sensible' ... run '~/.tmux/plugins/tpm/tpm' ...

How to fix (workaround): place unbind z bind-key z resize-pane -Z after run '~/.tmux/plugins/tpm/tpm'

What should be going wrong: Plugin do not correctly recognize binded key. Problem seems to be inside of 'key_binding_not_set()', in regex in particular.

btw, using OpenBSD's integrated tmux (it's 2.x I believe).