[EventCalendar] iCal subscriptions fail in 3.1_pre11 if PHP is configured to show warnings

[John Yeates]

iCal subscriptions fail in 3.1_pre11 if PHP is configured to show  
warnings, as it generates warnings about missing parameters when  
calling ec3_filter_query_vars and ec3_filter_query_vars_vcal.

As a temporary fix, I tried adding a default to the parameters in the  
function definition, thus:

function ec3_filter_query_vars($wpvarstoreset = array())

but, although I now get a .vcs file downloaded, iCal thinks there's  
nothing in it, and then starts getting very crashy and unreliable  
until the subscription is deleted again.

Possibly defaulting it to an empty array was the wrong thing to do :)

Does anybody know what's going wrong? The offending calendar's at  
http://www.westernsussexcamra.org.uk/?ec3_vcal

Thanks
-- 
JY