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Strange "Application Updates" email since upgrading from Plesk 11 to 12

H9k

Regular Pleskian
Hello!
Since upgrading a Debian 6 machine from Plesk 11 to Plesk 12, each morning I get an email from Plesk with the subject "Application Updates".
Nothing strange until now, but the content of the email just contains this: "register_long_arrays = On".
My other Plesk servers report stuff like wordpress plugins that need to be updated, but this one server just writes that php configuration parameter. Weird.
What can be the problem?
 
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