// Comment below left from previous code as it is an interresting note.
/* First field in pair is in short term list or
* at a different long term index.
* This is not allowed; see 7.4.3, notes 2 and 3.
* This is not allowed; see 22.214.171.124, notes 2 and 3.
* Report the problem and keep the pair where it is,
* and mark this field valid.
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