Safe DOCX posture
Custom XML insertion range start
This entry records bounded preservation and pairing validation for
w:customXmlInsRangeStart, not custom-XML revision semantics.
ECMA-376 edition 5, Part 1 § 17.13.5.7
Custom XML insertion range start
Product posture and evidence for this normative section. The ECMA publication is the authority; this page reports only the pinned Safe DOCX projection.