Mod-Operator supplies a faulty value for Modulo Division by zero (elimination)

Which products are affected?
EVS93xx-EI (Servo PLC Version 6.2 DSMC control board)
EVS93xx-ET (Servo PLC Version 6.2 DSMC control board)
EPL-10200-EI (Drive PLC Version 6.2)

What happens?
The Mod-Operator indicates a wrong result for the Modulo Division by zero.
In general: The Mod-Operator supplies the integer remainder of a division.
For example in ST (structured text):
Faulty actual status:  Var1:= 9 MOD 0;  (*Var1= 9*)
Correct return value (set): Var1:= 9 MOD 0;  (*Var1= 0*)
Correct return value:  Var1:= 9 MOD 2;  (*Var1= 1*)

When does the problem occur?
The problem occurs during Modulo Division by zero.

Possible diagnostics?
None.

Short-term measures/recommendations?
It must be ensured in the program that the dividend (denominator) cannot assume the value 'zero'.

Evaluation:
The function restriction is eliminated in a more recent version of the operating system.