Mining: "No UTXOs" bug causes missed block commits

[jcnelson]

When mining blocks, I have noticed that the error message No UTXOs for $PUBLIC_KEY is correlated strongly with Invalid block commit: missed target block errors. Moreover, all of the Invalid block commit: missed target block errors indicate that the block-commit was off by one block -- if the intended_modulus was n, then actual_modulus is invariably (n + 1) mod WINDOW_SIZE. This suggests to me that there may be a causal relationship between these two problems -- if the node can't find any UTXOs, it uses the block-commit intended for the last burn block.

I've attached the output of egrep 'No UTXOs|16sAXi1jxhxKCfY84hubDdnFNaAhqd5t49' -i /data/stacks/mainnet/logs/logs.out > /tmp/errors.txt to this issue to show you what I mean.
errors.txt

[lgalabru]

Should be addressed with #2383

[lgalabru]

Addressed with https://github.com/blockstack/stacks-blockchain/releases/tag/2.0.3