Key refresh corrupted key shares

[mpetrun5]

After the key refresh was done for FROST protocol, the signature generated by the keyshares wasn't tied to the public key anymore and couldn't be verified (error: generated signature couldn't be verified).

Implementation details

We don't have a inkling on what produced the error on devnet, but it would be prudent to monitor this issue and if it was a one time thing, close it.

Testing details

Execute multiple key refreshes and monitor how it behaves. The keys should always work

Acceptance Criteria

• key refreshes produce valid keys