Document fix for race condition that prevents ExitCode from being updated. #3577
Document fix for race condition that prevents ExitCode from being updated. #3577

zhangzhehust/htcondor,zhangzhehust/htcondor,djw8605/htcondor,zhangzhehust/htcondor,htcondor/htcondor,htcondor/htcondor,djw8605/htcondor,neurodebian/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,djw8605/htcondor,djw8605/htcondor,htcondor/htcondor,djw8605/htcondor,neurodebian/htcondor,htcondor/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,neurodebian/htcondor,htcondor/htcondor,zhangzhehust/htcondor,neurodebian/htcondor,djw8605/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,djw8605/htcondor,neurodebian/htcondor,neurodebian/htcondor,neurodebian/htcondor,djw8605/htcondor,neurodebian/htcondor,neurodebian/htcondor,djw8605/htcondor,zhangzhehust/htcondor