[Mediawiki-api] Problem with encoding in API answer when many parameters ?

Hi,

Very recently (saturday ?) my application, WPCleanerhttp://en.wikipedia.org/wiki/User:NicoV/Wikipedia_Cleaner/Documentation, started to behave strangely (report on enwikihttp://en.wikipedia.org/w/index.php?title=User_talk%3ANicoV%2FWikipedia_Cleaner%2FDocumentation&diff=492199275&oldid=482966305 and frwikihttp://fr.wikipedia.org/w/index.php?title=Discussion_utilisateur%3ANicoV%2FWikipedia_Cleaner&diff=78674548&oldid=78639841), without any modfications on my side.

I checked what was going on, and it seems that answers from the API have problems with accented characters, like "é".

For example, this very long requesthttp://fr.wikipedia.org/w/api.php?prop=templates&action=query&titles=Acteur|Albert%20Robbins|Anglais|Ann%20Donahue|Anthony%20E.%20Zuiker|Carol%20Mendelsohn|Catherine%20Willows|David%20Hodges|David%20Phillips|Gil%20Grissom|Greg%20Sanders|Hodges|Internet%20Movie%20Database|Jim%20Brass|Lady%20Heather|Les%20Experts%20(s%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e)|Les%20Experts%20:%20Manhattan|Les%20Experts%20:%20Miami|Liste%20des%20personnages%20des%20Experts|Liste%20des%20%C3%A9pisodes%20des%20Experts|Mod%C3%A8le%20discussion:Palette%20Les%20Experts|Nick%20Stokes|Personnage%20de%20fiction|Personnage%20fictif|Personnage%20de%20fiction|Personnages%20r%C3%A9currents%20dans%20Les%20Experts|Raymond%20Langston|Riley%20Adams|Saison%201%20des%20Experts|Saison%2010%20des%20Experts|Saison%2011%20des%20Experts|Saison%2012%20des%20Experts|Saison%202%20des%20Experts|Saison%203%20des%20Experts|Saison%204%20des%20Experts|Saison%205%20des%20Experts|Saison%206%20des%20Experts|Saison%207%20des%20Experts|Saison%208%20des%20Experts|Saison%209%20des%20Experts|Sara%20Sidle|Sofia%20Curtis|S%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e|Wallace%20Langham|Warrick%20Brown|Wendy%20Simms|%C3%89tats-Unis, gives the following result (see the strange characters instead of the é, è, ...) :

<?xml version="1.0"?><api> <query> <pages> <page ns="0" title="Les Experts (série télévisée)" missing="" /> <page ns="0" title="Liste des épisodes des Experts" missing="" /> <page ns="0" title="Modèle discussion:Palette Les Experts" missing="" /> <page ns="0" title="Personnages récurrents dans Les Experts" missing="" /> <page ns="0" title="Série télévisée" missing="" /> <page ns="0" title="Wallace Langham" missing="" /> <page ns="0" title="États-Unis" missing="" /> <page pageid="43579" ns="0" title="Acteur" />

But if I reduce the number of pages in the titles= argumenthttp://fr.wikipedia.org/w/api.php?prop=templates&action=query&titles=Acteur|Albert%20Robbins|Anglais|Ann%20Donahue|Anthony%20E.%20Zuiker|Carol%20Mendelsohn|Catherine%20Willows|David%20Hodges|David%20Phillips|Gil%20Grissom|Greg%20Sanders|Hodges|Internet%20Movie%20Database|Jim%20Brass|Lady%20Heather|Les%20Experts%20(s%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e)|Les%20Experts%20:%20Manhattan|Les%20Experts%20:%20Miami|Liste%20des%20personnages%20des%20Experts|Liste%20des%20%C3%A9pisodes%20des%20Experts|Mod%C3%A8le%20discussion:Palette%20Les%20Experts|Personnages%20r%C3%A9currents%20dans%20Les%20Experts|S%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e|%C3%89tats-Unis, it works again correctly (the "Modèle discussion:Palette Les Experts" is correct, other pages also but below in the answer) :

<api> <query> <pages> <page ns="0" title="Modèle discussion:Palette Les Experts" missing="" /> <page pageid="43579" ns="0" title="Acteur" /> <page pageid="4307505" ns="0" title="Albert Robbins" /> <page pageid="5539" ns="0" title="Anglais">

Any idea ? Nico