Created attachment 123403 [details]
ODT file which reported containing error attribute value
Use ODF online validator https://odf-validator.rhcloud.com/
Set to ODF 1.2 (extended conforming), and upload the ODT file (as attachment in this report), the result reported:
Error: attribute "text:start-value" has a bad value: "0" does not satisfy the "positiveInteger" type
This should be a LibreOffice bug.
This file is generated by LibreOffice 188.8.131.52.
The output of this validator is as follows:
03_????.odt/styles.xml[2,38407]: Error: attribute "text:start-value" has a bad value: "0" does not satisfy the "positiveInteger" type
03_????.odt: Info: Generator: LibreOffice/184.108.40.206$Windows_x86 LibreOffice_project/55b006a02d247b5f7215fc6ea0fde844b30035b3