said Greg Madden:

| I reply to an email, I use 'smart quoting'
| Actually editing new emails same issue.

am not encountering those problems in the build for kubuntu 12.04 -- 
but i have encountered a different strange behavior: i have several 
different "identities," which is to say email addresses, that i use 
on the same machine. since last week's upgrades i've noticed that 
kmail no longer observes the default identity and in fact seems to 
select the one most recently used. it formerly defaulted in replies 
to the one to which the original message was sent, but that seems no 
longer to be the case. has led to some confusion.
-- 
dep

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