Keep-client generates new preparams at each restart

[thevops]

As I understand, keep-client generates preparams up to the default value which is 1000.
But I noticed that keep-client generates also one preparam at each restart of the container.
Currently, I have:

/ $ ls -1 /storage/work/tbtc/preparams/ | wc -l
1013

My environment

Chain: goerli (I didn't check this issue on mainnet yet)

Docker image: us-docker.pkg.dev/keep-test-f3e0/public/keep-client (from: https://docs.threshold.network/staking-and-running-a-node/goerli-testnet-staking/testnet-tbtc-v2-node-setup#docker-launch-script)

Additional configuration:

KeyGenerationConcurrency: 1
PreParamsGenerationConcurrency: 1

--- EDIT ---

I've also noticed that these redundant preparams over 1000 are not included in the Prometheus metric tbtc_pre_params_count. That metric shows 1000 even if there are more preparams.

[thevops]

I checked this on mainnet also, and it seems that the same issue exists.
I have more than 1000 preparams depending on the number of restarts.