Cancel scheudled measurements then the ruler is being cleared

src/foundry_imports.js

@@ -134,9 +134,7 @@ function scheduleMeasurement(destination, event) {
 		this.measure(destination, {snap: !originalEvent.shiftKey});
 		event._measureTime = Date.now();
 		this._state = Ruler.STATES.MEASURING;
-		window.clearTimeout(this.deferredMeasurementTimeout);
+		cancelScheduledMeasurement.call(this);
-		this.deferredMeasurementTimeout = undefined;
-		this.deferredMeasurementResolve?.();
 	}
 	else {
 		this.deferredMeasurementData = {destination, event};
@@ -147,6 +145,12 @@ function scheduleMeasurement(destination, event) {
 	}
 }
 
+export function cancelScheduledMeasurement() {
+	window.clearTimeout(this.deferredMeasurementTimeout);
+	this.deferredMeasurementTimeout = undefined;
+	this.deferredMeasurementResolve?.();
+}
+
 // This is a modified version of Ruler.measure form foundry 0.7.9
 export function measure(destination, options={}) {
 	const isToken = this.draggedEntity instanceof Token;

src/ruler.js

@@ -1,4 +1,4 @@
-import {measure} from "./foundry_imports.js"
+import {cancelScheduledMeasurement, measure} from "./foundry_imports.js"
 import {getMovementHistory} from "./movement_tracking.js";
 import {settingsKey} from "./settings.js";
 import {getSnapPointForEntity, setSnapParameterOnOptions} from "./util.js";
@@ -16,6 +16,7 @@ export class DragRulerRuler extends Ruler {
 		this.previousWaypoints = [];
 		this.previousLabels.removeChildren().forEach(c => c.destroy());
 		this.dragRulerRanges = undefined;
+		cancelScheduledMeasurement.call(this);
 	}
 
 	async moveToken(event) {