I'm getting a few "Fatal exception of type MWException" on ptwiki today:
https://pt.wikipedia.org/w/index.php?title=Wikip%C3%A9dia:Esplanada/propostas&curid=61666&action=history
[4593a654] 2013-02-01 15:25:37: Fatal exception of type MWException
https://pt.wikipedia.org/w/index.php?title=Wikip%C3%A9dia%3AEsplanada%2Fgeral%2FQual_deve_ser_o_conte%C3%BAdo_da_p%C3%A1gina_principal%3F_%284jan2013%29&diff=33923822&oldid=33824470
[3c063d5e] 2013-02-01 15:25:38: Fatal exception of type MWException
Version: 1.21.x
Severity: major
Whiteboard: aklapper-moreinfo