Incorrect parent for async subsegment

[xendo]

I'm using Xray in async context and I noticed than when async subsegment is closed it will still be a parent for new subsegments. The expected behavior is that when a subsegment is closed it will be popped from the context.

    @Test
    void incorrectParrentForAsyncSubsegment() {
        Segment parent = AWSXRay.beginSegment("parent");
        Subsegment child1 = AWSXRay.beginSubsegment("child1");
        AWSXRay.endSubsegment(child1);

        Subsegment child2 = AWSXRay.beginSubsegment("child2");

        // this passes, but it's incorrect the 'child1' was already closed when child2 was started
        assertEquals(child2.getParent(), child1);

        // this fails
        assertEquals(child2.getParent(), parent);
    }

[mxiamxia]

If you want to create un-nested Subsegments at the same level of a parent Segment. Try child1.close(); instead of AWSXRay.endSubsegment(child1); before creating the next subsegment.