what was i THINKING

src/main/java/baritone/behavior/PathingBehavior.java

@@ -135,7 +135,6 @@ public final class PathingBehavior extends Behavior implements IPathingBehavior,
                     ) {
                         // when it was *just* started, currentBest will be empty so we need to also check calcFrom since that's always present
                         inProgress.cancel(); // cancellation doesn't dispatch any events
-                        inProgress = null; // this is safe since we hold both locks
                     }
                 }
             }