[Gm2] Potential woe with gm2-4.1.2

[john o goyo]

Could someone on the list please humour me by building and running the 
following with gm2-4.1.2?

Thank you.
john

===[other.def]===
DEFINITION MODULE other;

VAR
  n :CARDINAL;

END other.

===[other.mod]===
IMPLEMENTATION MODULE other;

BEGIN
  n := 1
END other.

===[main.mod]===
MODULE main;

FROM other IMPORT n;

BEGIN
  n := 1;
  HALT
END main.