It looks like you have solved bug 45446 for sv.wikipedia.
On sv.Wikisource, we would like to have the same feature, but with a small change, if possible. We are mainly dealing with older texts, therfore an older sorting order is more valid. The difference from Wikipedia should be that the letter 'W' should be regarded as another way of writing the letter 'V', they should have the same priority in sorting order. 'Wallenberg' should be listed before 'Vennerström' under label 'V'.
Community talk: "sv.wikisource:Wikisource:Mötesplatsen#Sorteringsordning i kategorier"
Two users has agreed this far, all of the active sysops.
Look in the article of "W" on sv.wikipedia for details of why we want this solution. The letter W officially became a part of the Swedish alphabet as late as 2006. On Wikisource, we are dealing mainly with texts from 19'th century.