memory leak with changed environments

[monetr]

Hello,
i lose memory when i execute the following script.
Without changed environment for test, no memory is lost.
Is this a bug or feature?

$ bash --version
GNU bash, version 2.05b.0(1)-release (i586-suse-linux)
Copyright (C) 2002 Free Software Foundation, Inc.

#!/bin/bash
# The first loop iterates infinitely over the bad code.
# The IFS=x causes the second loop to consume more and more memory.
# Should'nt this memory be freed, when the inner while statements terminates?
# No memory is lost when i remove IFS=x.
declare -i I=0
while true
do
  while IFS=x test "$I" -lt 10
  do 
    I=$I+1
  done
done

bye,
rainer
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