Following up on http://stackoverflow.com/q/7908627/301832 which gives the full background.
If you have a document containing an element with the attribute xml:space="preserve" then the spaces in the content of that element should be preserved even if -keepSpaces is not specified. This is the defined behavior of xml:space (there may be other types of space management that should be applied by default, but this is the critical one).
Following up on http://stackoverflow.com/q/7908627/301832 which gives the full background.
If you have a document containing an element with the attribute xml:space="preserve" then the spaces in the content of that element should be preserved even if -keepSpaces is not specified. This is the defined behavior of xml:space (there may be other types of space management that should be applied by default, but this is the critical one).