fix(SUP-51302): fix _setSrc() returning wrong promise causing iOS pla… (#869)

…yback failure

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### Description of the Changes

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enhancement or a bugfix.
If the PR is related to an open issue please link to it.

### CheckLists

- [ ] changes have been done against master branch, and PR does not
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- [ ] new unit / functional tests have been added (whenever applicable)
- [ ] test are passing in local environment
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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: ravitshalem <31099969+ravitshalem@users.noreply.github.com>

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src/engines/html5/media-source/adapters/native-adapter.ts

@@ -488,7 +488,8 @@ export default class NativeAdapter extends BaseMediaSourceAdapter {
       }
     }
     requestFilterPromise = requestFilterPromise || Promise.resolve(pkRequest);
-    requestFilterPromise
+    this._hlsManifestHandler.reset();
+    return requestFilterPromise
       .then(updatedRequest => {
         return this._hlsManifestHandler.fetchManifestData(updatedRequest.url).then(() => {
           if (this._config.useSourceTag) {
@@ -532,7 +533,6 @@ export default class NativeAdapter extends BaseMediaSourceAdapter {
       .catch(error => {
         this._trigger(Html5EventType.ERROR, new Error(Error.Severity.CRITICAL, Error.Category.NETWORK, Error.Code.REQUEST_FILTER_ERROR, error));
       });
-    return requestFilterPromise;
   }
 
   /**