Do bandwidth authorities reset history when the relay fingerprint changes?

I deleted all the private keys from my relay and created a new one, within the day of the new one running it’s middle probability jumped up to around what the other relay had after a week of running. Is this a bug?

My relay. https://atlas.torproject.org/#details/CD8F43AE828C7F9A8B32C6DC9B5D7DABB4D27A97

Trac:
Username: Dbryrtfbcbhgf

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