Merge pull request #218 from davidburhans/left-then-right-click-button-fix

Clumsy clicker fix

src/js/core/click_detector.js

@@ -325,6 +325,7 @@ export class ClickDetector {
                 // Ignore right clicks
                 this.rightClick.dispatch(position, event);
                 this.cancelled = true;
+                this.clickDownPosition = null;
                 return;
             }
         }