Cydia saved SHSH as 3.2.2

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Can anyone here help me answer this?
I have an Ipad with Firmware 3.2.1 Jailbroken with Cydia.
At the top in Cydia (in Green) show - SHSH: iOS 3.2.2

Why does Cydia save as 3.2.2 and not 3.2.1?

I use Tinyumbrella to save SHSH>it save as 3.2.2

Thanks