We have two pages for the same toolbar split button for inserting fields: - https://opengrok.libreoffice.org/xref/help/source/text/swriter/02/18030000.xhp (which is actually linked to the UNO command) online at https://help.libreoffice.org/latest/en-US/text/swriter/02/18030000.html - https://opengrok.libreoffice.org/xref/help/source/text/swriter/02/19040000.xhp (which is not linked to the UNO command), online at https://help.libreoffice.org/latest/en-US/text/swriter/02/19040000.html One needs to disappear, making sure all existing links to it are redirected to the surviving one.
Olivier Hallot committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/772dac9c72752c82c015bcd222655b50a6eeb9eb tdf#160035 Remove extra Help page