After bug 90401 is resolved, Help for 7.2 and beyond should be amended with that info. Now for "Remove personal information on saving" we see: Select to always remove user data from the file properties. It should read: Select to always remove user data from the file properties, comments and tracked changes.
Hi Timur, thanks for reporting. Relevant file is: text/shared/optionen/securityoptionsdialog.xhp I'm taking this.
Rafael Lima committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/dd88f0407623a3c075727254abe5c93a88a5dedb tdf#143930 update Security help page about new feature
Thanks Rafael. I guess this can be closed, you can do it after fix is pushed.