#1723 Sorting order of Publications not in a Publication Series for Publisher

[Ahasuerus]

The Web page "Publications not in a Publication Series for Publisher" sorts by date only, which can cause odd behavior. For example, the listing for "Tor Nightfire":

    Echo (2022-02-08)
    Dead Silence (2022-02-08)
    Echo (2022-02-08)

As per Community Portal, we want to add a secondary sort by title to make things prettier.