Allow Ctrl-b to work in nested tmux #3
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When starting a nested tmux, do not revert the tmux prefix in the parent tmux to the default (C-b) as it intercepts Ctrl-b from the nested tmux. Instead, bind the tmux prefix to C-F12, which is unlikely to be used and parallels the M-F12 binding used for active handler. For example, to reproduce the problem: 1) Start tmux 2) Start vim in paraent tmux - Ctrl-f works to go forward a page - Ctrl-b works to go back a page 2) Create nested tmux (C-a C-s) 3) Start vim in nested tmux - Ctrl-f works to go forward a page - Ctrl-b does not work to go back a page
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When starting a nested tmux, do not revert the tmux prefix in the parent
tmux to the default (C-b) as it intercepts Ctrl-b from the nested tmux.
Instead, bind the tmux prefix to C-F12, which is unlikely to be used and
parallels the M-F12 binding used for active handler.
For example, to reproduce the problem: