Case in point: I'm a on mac with bash v3.2.17, I'm using git installed via macports with the bash_completion variant. When I type git checkout m<tab>. for example, I get it completed to master. However, I've got an alias to git checkout, gco. When I type gco m<tab>, I don't get the branch name autocompleted. Ideally I'd like autocompletion to just magically work for all my aliases. Is it possible?