10.10.2 update authenticity check fails

I manually downloaded the 10.10.2 update using the instructions in the KB article "OS X Yosemite 10.10.2 Update" which tells you to download http://support.apple.com/downloads/DL1785/en_US/osxupd10.10.2.dmg

The KB article also tells you:

See http://support.apple.com/kb/HT5044 article for details on how to verify the authenticity of this download.

I downloaded the file, and followed the instructions to verify it. In step 6, the certificate fingerprints don't match. Here's a screenshot:

I've downloaded 3 copies of this osxupd10.10.2.dmg file over 3 different internet connections. All of them are the same, with the SHA256 checksum:

08f02e87adfb06b73dcec6dc55e07e2e88cb661cfb5869d6664a93d2935ebef5

If you have a different SHA256 checksum, I would be interested to hear that.

(Please don't bother responding with accusations of paranoia. Yes, I'm aware that the Apple KB article about verification might simply be out of date. If you think a security-sensitive KB article containing wrong fingerprints is a non-issue, then please find another conversation and move on. Thanks.)