In init_record the udf field is no longer set to false if inp

is a constant link and recGblInitConstantLink returns success
(rval, not val, was successfully initialized).

src/dev/devMbbiSoftRaw.c

@@ -78,7 +78,6 @@ static long init_record(pmbbi)
 
     if (pmbbi->inp.type == CONSTANT) {
 	recGblInitConstantLink(&pmbbi->inp,DBF_ULONG,&pmbbi->rval);
-	pmbbi->udf = FALSE;
     }
     return(0);
 }