XLIFF 2.0 - dF Sanity Check of the spec - question for the editors #002

Dear Rodolfo, Yves,

In Section 2.1, the second general processing requirement says

When a <target> child is added to a <segment> element, the value of
its xml:space attribute
should be set to preserve if the xml:space attribute of the sibling
<source> element is set to
preserve.


Can we list a single possibly valid reason not to preserve if the
source is set to preserve?
If not, we probably want to say MUST instead of SHOULD.

Thanks for your attention
dF

Dr. David Filip
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