FileChooser: 0% > 'on hold' (#12037)

frontend/ui/widget/filechooser.lua

@@ -212,7 +212,7 @@ local FileChooser = Menu:extend{
             end,
         },
         percent_natural = {
-            -- sort 90% > 50% > 0% or on hold > unopened > 100% or finished
+            -- sort 90% > 50% > 0% > on hold > unopened > 100% or finished
             text = _("percent – unopened – finished last"),
             menu_order = 90,
             can_collate_mixed = false,
@@ -241,11 +241,11 @@ local FileChooser = Menu:extend{
                     local doc_settings = DocSettings:open(item.path)
                     local summary = doc_settings:readSetting("summary")
 
-                    -- books marked as "finished" or "on hold" should be considered the same as 100% and 0% respectively
+                    -- books marked as "finished" or "on hold" should be considered the same as 100% and less than 0% respectively
                     if summary and summary.status == "complete" then
                         sort_percent = 1.0
                     elseif summary and summary.status == "abandoned" then
-                        sort_percent = 0
+                        sort_percent = -0.01
                     end
 
                     percent_finished = doc_settings:readSetting("percent_finished")