use 'P' parameter expansion flag with array?

[Greg Klanderman <gak@xxxxxxxxxxxxxx>]

If the 'P' parameter expansion flag is applied to an array parameter,
should it be applied to each of the elements?  Seems like it should,
but it doesn't seem to be:


[~] greg@lwm| zsh -f
lwm% 
lwm% echo $ZSH_VERSION
4.3.10-dev-1
lwm% foo=(bar baz)
lwm% bar=10
lwm% baz=35
lwm% echo ${(P)foo}
10
lwm% echo ${(P@)foo}
10
lwm% echo ${(P)foo[@]}
10
lwm% 


thanks,
Greg