Tags/Categories duplicated on created child nodes (v5)

[jrod567]

In v5, tags created on the originating ExtentTest are now carried down to all child nodes created.

`ExtentSparkReporter sparkReport = new ExtentSparkReporter(fullReportPath);
ExtentReports er = new ExtentReports();
er.AttachReporter(sparkReport);
er.Report.AnalysisStrategy = AnalysisStrategy.Test;

ExtentTest et = er.CreateTest("MyTest");
et.AssignCategory("MyTag1", "MyTag2");
et.CreateNode("MyNode1").CreateNode("MyNode2");
er.Flush();`

Report:

In v4, this behavior did not exist. Is this by design in v5 or a bug?