HPCC-10666 Operations on Files should not, by default, change the state

Add fix.

Signed-off-by: Attila Vamos <attila.vamos@gmail.com>
Is there a way to distinguish that compressOutput is not set, and thus that the output should match the input from compressOuptut being explicitlt set one way or the other?

There are legitimate reasons for wanting to spray a compressed file to an uncompressed one...