Error when value is an URL with an = symbol
From semantic-mediawiki.org
Fragment of a discussion from Archive talk:Template format
Templates: http://wiki.15m.cc/wiki/Plantilla:Noticias_por_fuente and http://wiki.15m.cc/wiki/Plantilla:Noticias_por_fuente/row
Page with ask that uses this template: http://wiki.15m.cc/wiki/Lista_de_noticias
You can see the broken external links in some of the rows. All are cases of URLs with '?='.
Could the issue be that you need to a "1=" to the "convertir fecha" template call in that 2nd link?
If this is still a problem, can you log this as an issue here: http://semantic-mediawiki.org/wiki/Help:Reporting_bugs