Are these tasks really duplicates? The other task was caused by double escaping in the GlobalUsage extension and is now fixed and working fine. This bug with substitution of PAGENAME is unlikely to be caused by GlobalUsage extension.
Hi, I went to https://pt.wikinews.org/wiki/Lira_nega_que_haja_%22jabutis%22_na_MP_da_Eletrobras#Fontes and fail to understand where to see a problem and what "error" means exactly. Could you please follow https://www.mediawiki.org/wiki/How_to_report_a_bug and provide 1) clear steps to reproduce, step by step, 2) what exactly you expect to happen (including the specific wikitext line), and 3) what exactly happens instead (including the specific wikitext line)? Thanks.