Am Mittwoch, 4. Mai 2011 schrieb Alex Brollo:
I reloaded a new version of [[File:Progetto di una strada a guide di ferro da Venezia a Milano.djvu]], since previous souce was wrong (some pages lack the image of tables). Now, when proofreading, after many days from upload, when reading page :it:s:pagina:Progetto di una strada a guide di ferro da Venezia a Milano.djvu/94 the right, updated thombnail is shown, while the old, blank one is shown when editing the page.
You can see the difference comparing the result of the code [[File:Progetto di una strada a guide di ferro da Venezia a Milano.djvu|page=94|1000px]] and [[File:Progetto di una strada a guide di ferro da Venezia a Milano.djvu|page=94|900px]]. The first one is wrong, the second one is right.
What's happening? Is it a matter of patience only? Is there some trick to force a remote, exotic cache purging?
Seems like a bug to me. I get the same behaviour without having had that particular page in my browser's cache before. Adding "action=purge" to various URIs on both it.source and commons doesn't help either. I think you should report it to Thomas or on Bugzilla.
Best regards, Alexander