ECN-4691 Second OPEN on file "NUL" causes 93 file status code

Incident: 3235901

RPI Number: 1121058

Product: ACUCOBOL-GT

Module: Runtime

Machines Affected: Windows

Known Versions Affected: 10.3.0 and later

DESCRIPTION:

Opening the special file "NUL" a second time sometimes caused a code 93 error: File previously closed with LOCK by this run unit. This has been corrected.