Fæ, 01/05/2014 14:59:
Instead, a good example of characters giving a problem is the file at [1]. This caused the GWT run to halt but was successfully loaded once I changed the "Æ" (ae ligature) character in Ægean to a simple "A". The only cause of this failure must have been the character, which is allowed in the mediawiki software.
Links 1.https://commons.wikimedia.org/wiki/File:A_new_map_of_the_islands_of_the_Agea...
Thanks, this gives you clear steps to reproduce and makes a valuable bug report. Please file. :)
Nemo