Created attachment 195023 [details] A document containing a table of numbers with the lining number feature enabled Steps to reproduce: 1. Install the free and open-source font "Zilla Slab", available at https://fonts.google.com/specimen/Zilla+Slab (or any other font that includes a lining numerals OpenType feature) 2. Create a table in which some of the entries are only a number or comma-separated numbers 3. Activate Zilla Slab's lining numerals (lnum) feature through Format → Character → Features or set the document's font to "Zilla Slab:lnum" Expected behaviour: in the table entries that contain only a number or a number followed by a comma, the number displays in the lining number form, as it does for the table entries that contain letters. Actual behaviour: in the table entries that contain only a number or a comma-separated number followed by a comma, the numbers display as their default non-lining forms. Even stranger, if any alphabetic character is typed in the cell, all digits in the cell switch to their lining form. Attached is a file that reproduces the bug.