[TMUX] Fall back to ssh alias unless remote title is user@host

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

zsh/lib/interactive.zsh

@@ -110,7 +110,7 @@ zstyle :bracketed-paste-magic paste-finish pastefinish
 ZSH_AUTOSUGGEST_CLEAR_WIDGETS+=(bracketed-paste)
 
 # Mirror the ssh destination into a per-pane tmux option; .tmux.conf labels ssh
-# panes (window name, pane border only in windows with ssh panes) by title.
+# panes with it or the remote's user@host title.
 _ssh_host_tmux() {
     local -a set=(set -p -t $TMUX_PANE @ssh_host "$1")
     [[ -n $1 ]] || set=(set -pu -t $TMUX_PANE @ssh_host)
@@ -146,8 +146,8 @@ _ssh_host_preexec() {
     [[ -n $host ]] || return
     _ssh_host_tmux $host
     _ssh_host_set=1
-    # pane title starts as the alias; a remote that sets its own title wins.
-    # Runs after OMZ's preexec, so this replaces its "ssh ..." title.
+    # title the pane with the alias until the remote sets one; runs after
+    # OMZ's preexec, so this replaces its "ssh ..." title
     print -rn -- $'\e]2;'"$host"$'\e\\'
 }
 _ssh_host_precmd() {