Due to titleToKey() for the third part of the continue param some continues does not.
For example the language 'de' has the canonical name for NS_FILE "Datei". When having a continue like "1|commons|File:Wiki.png" the last part is changed to "Datei:Wiki.png" and the continue cannot work, because D < F.
For the continue "1|commons|Category:Test" the result starts with K, because 'de' has NS_CATEGORY = "Kategorie"
Maybe give the interwiki also to titleToKey, so the validation of the title is done, but not a change of the namespace.
Thanks.
Version: 1.17.x
Severity: normal