ProxyCommand breaks ssh integration about .tmux HOT 1 OPEN

Hello @OGKevin 👋

Sorry for my late reply.
I'm not sure yet how to make #{hostname_ssh} and #{username_ssh} generally work when there's a ProxyCommand.

The logic detects the leaf process in a pane and when the leaf process is ssh, then try to get the remote username and hostname.

In your first example, it seems that the tree of processes is

-zsh
└── /bin/zsh /home/kevin/bin/scripts/gssh.sh dbtesting
    └── ssh db-vm-*
        └── /bin/bash /home/kevin/bin/scripts/iap-proxy.sh db-vm-*
            └── /home/kevin/.nix-profile/google-cloud-sdk/platform/bundledpythonunix/bin/python3 /home/kevin/.nix-profile/google-cloud-sd

The difficulty is to know where to break the chain...

If I'm not mistaken, iap-proxy.sh is a script you wrote yourself, right?

from .tmux.