Incorrect test count in release 1.8.0

[zhelanov]

I'm running 82 UI tests and try to export xcresult in xcode 10 format via 'xcresults'.
On version 1.6.3 I had no problems with tests counting - 'xcresults' report the same tests number as a 'trainer' but on version 1.8.0 tests count doubles for some reason:

hostnamehere:projdir user$ xcresults_old export somepath/fastlane/reports/Myproj.xcresult somepath/fastlane/reports/Myproj.xcresult_xcode10
Delete existing output directory...
Export information about 82 test summaries...

hostnamehere:projdir user$ xcresults export somepath/fastlane/reports/Myproj.xcresult somepath/fastlane/reports/Myproj.xcresult_xcode10
Delete existing output directory...
Export information about 164 test summaries...

By the way "--version" is not working :)