Hi, that's indeed a bug in the wordlist, the attached (trivial) patch fixes this by removing the wrong variant. (The correct words are already in the list.)
Martin
diff -ru swedish-1.4.4/Substantiv.j/ing.data swedish-1.4.4_new/Substantiv.j/ing.data --- swedish-1.4.4/Substantiv.j/ing.data 2001-05-28 15:08:03.000000000 +0200 +++ swedish-1.4.4_new/Substantiv.j/ing.data 2007-04-20 19:22:16.000000000 +0200 @@ -764,7 +764,6 @@ lösning/ADGV lövsprickning/ADV magpumpning/ADGV -maknadsföring/ADV maktställning/ADGV maktutövning/ADV maning/ADGV