Merge pull request #3164 from nailor/fix-deactivate-bug

virtualenvwrapper: Deactivate only if in virtualenv

plugins/virtualenvwrapper/virtualenvwrapper.plugin.zsh

@@ -38,7 +38,7 @@ if (( $+commands[$virtualenvwrapper] )); then
                 source $ENV_NAME/bin/activate && export CD_VIRTUAL_ENV="$ENV_NAME"
               fi
             fi
-          elif [ $CD_VIRTUAL_ENV ]; then
+          elif [[ -n $CD_VIRTUAL_ENV && -n $VIRTUAL_ENV ]]; then
             # We've just left the repo, deactivate the environment
             # Note: this only happens if the virtualenv was activated automatically
             deactivate && unset CD_VIRTUAL_ENV