Export in 1.12.47 fails to preserve hyperlinks
Problem: (1) Create a gnumeric spreadsheet ss.gnumeric containing hyperlinks to local files (ie, "External Files") with (Fedora 33) gnumeric version 1.12.47.
(2) ssconvert ss.gnumeric ss.xls
Result: The hyperlinks in ss.gnumeric are lost in ss.xls. The blue text is there, but the link is not.
Remarks: (1) Hyperlinks are preserved as expected in (Debian 10) version 1.12.44 and in earlier Fedora versions.
(2) Exporting directly to xls format in gnumeric also fails to save hyperlinks. In fact, exporting to any of the excel formats and to html also fails to export hyperlinks.