title: PlantUML Activity Diagram Go Back
body: <p>I am using PlantUML to create an Activity diagram.</p>
  <p>I want the arrow that comes out of <code>Modify Details</code> to go back to <code>OP2</code> instead of the diamond.</p>
  <p>I have this diagram:</p>
  <pre><code>@startuml
  |Swimlane1|
  start
  :OP1;
  |Swimlane2|
  :OP2;
   if (Form Valid?) then (No)
  |Swimlane1|
  :Modify Details;  /' &lt;-- This should point _back_ to OP2 '/
  |Swimlane2|
    
    else (Yes)
      :Add Detals to System;
    endif
  :OP3;
  |Swimlane2|
  :foo5;
  stop
  @enduml
  </code></pre>
  <p>Which gives this image:</p>
  <p><a href="https://i.stack.imgur.com/Q9LL9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Q9LL9.png" alt="graphviz diagram" /></a></p>