get_categories(): ignore empty is_mult values

2025-07-09 03:04:10 -04:00 · 2010-12-14 13:31:09 -07:00 · 2010-12-14 13:31:09 -07:00 · 1a90427d8d
commit 1a90427d8d
parent 85ae7c7d4f
1 changed files with 1 additions and 0 deletions
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@ -1153,6 +1153,7 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
                else:
                    vals = book[dex].split(mult)
                    for val in vals:
+                        if not val: continue
                        try:
                            (item_id, sort_val) = tids[cat][val] # let exceptions fly
                            item = tcategories[cat].get(val, None)