title: Last command in same terminal
body: <p>When, in Bash, I have two terminals open, each maintain its own history, so hitting arrow-up always presents the previous command entered in that terminal.</p>
  
  <p>In zsh the history is shared, so arrow-up presents the last command entered in either terminal. I rather like that ctrl-R gives me the full, shared history, but is there a way to make arrow-up give me the last command from the active terminal?</p>