fix: skip async invoke self-cancel on own done.invoke

[loRes228]

On the async engine, when a state exits on its own done.invoke, InvokeManager._cancel
calls invocation.task.cancel() unconditionally — but that task is the current task
and the machine gets stuck.

The sync branch already handles exactly this (step 4 skips the join when
invocation.thread is not threading.current_thread() — "skip if we ARE that thread").
The async branch just missed the symmetric guard. This adds it:

         # 3) Cancel the async task (raises CancelledError at next await).
-        if invocation.task is not None and not invocation.task.done():
+        if (
+            invocation.task is not None
+            and invocation.task is not asyncio.current_task()
+            and not invocation.task.done()
+        ):  
             invocation.task.cancel()

[fgmacedo]

Hi @loRes228 , how are you? Thanks for pointing out and the fix.

Can you please add a regression test that reproduces the issue?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (34d51cf) to head (e20c88e).

Additional details and impacted files

@@            Coverage Diff            @@
##           develop      #627   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           42        42           
  Lines         4976      4976           
  Branches       812       812           
=========================================
  Hits          4976      4976           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[loRes228]

Hi @loRes228 , how are you? Thanks for pointing out and the fix.

Can you please add a regression test that reproduces the issue?

Hi, ofc

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud