fix: disambiguate repeated-target event timing

src/testing/performance-instrumentation.ts

@@ -30,6 +30,7 @@ export interface ScriptedActionSample {
   id: string;
   target: string;
   dispatchTime: number;
+  captureEndTime: number | null;
   acknowledgementCount: number;
   mutationTime: number | null;
   doubleRafTime: number | null;
@@ -111,6 +112,7 @@ export const evaluateEventToNextPaint = (
       entry.target === action.target
       && entry.startTime >= action.dispatchTime
       && entry.startTime <= action.dispatchTime + 500
+      && (action.captureEndTime === null || entry.startTime < action.captureEndTime)
     ));
     if (matching.length === 0) return 16;
     const groups = new Map<number, number>();
@@ -270,7 +272,9 @@ export const installAuthorizedPerformanceInstrumentation = async (): Promise<voi
         for (const entry of list.getEntries()) {
           const timed = entry as PerformanceEntry & { interactionId?: number; target?: Node | null };
           for (const record of actionRecords.values()) {
-            if (timed.target === record.element) {
+            if (timed.target === record.element
+              && timed.startTime >= record.dispatchTime
+              && (record.captureEndTime === null || timed.startTime < record.captureEndTime)) {
               (record.eventEntries as EventTimingSample[]).push({
                 target: record.id,
                 startTime: timed.startTime,
@@ -360,10 +364,15 @@ export const installAuthorizedPerformanceInstrumentation = async (): Promise<voi
       if (!exactActionIds.has(id) || actionRecords.has(id)) throw new Error('The performance action is invalid or duplicated.');
       const element = document.querySelector(selector);
       if (!(element instanceof Element)) throw new Error('The performance action target is unavailable.');
+      const dispatchTime = performance.now();
+      for (const record of actionRecords.values()) {
+        if (record.element === element && record.captureEndTime === null) record.captureEndTime = dispatchTime;
+      }
       actionRecords.set(id, {
         id,
         target: id,
-        dispatchTime: performance.now(),
+        dispatchTime,
+        captureEndTime: null,
         acknowledgementCount: 0,
         mutationTime: null,
         doubleRafTime: null,