cumulated into a list.  Undefined to
    accumulate lists as usual, or 0 to accumulate lists in TAG_EXTRA "NoList" element (and
    set a TAG_EXTRA "NoListDel" flag for tags that wouldn't have been created).</td></tr>

<tr><td>NO_STRUCT</td><td>Set if structures shouldn't be restored for this metadata.  Used
    to avoid restoring structures for non-XMP (eg. XML) information.</td></tr>

<tr><td>NO_STRUCT_WARN</td><td>Set if structures warnings should be ignored when rebuilding
    structures (for questionab