code: public Forwarder clearTo(@NotNull Class<? extends Controller> clearTo) {
          clearHistory = true;
          clearToLocationId = clearTo.getName();
          return this;
      }
docs: Clear history to the first matched locationId. For example, current history is
  A->B->A->C->B, clearToLocationId("A") will pop B and C and leave the back stack as A->B->A.
  
  <p>Note that, if {@link #clearAll()} is called, this method has no effect</p>
  @param clearTo The presenter below the next location after clearing history
  @return This instance