Bug Report

Setup

CometBFT version

v0.38.x
v1.x
main

Have you tried the latest version:

yes

What happened?

The PruneBlocks function deletes block information by appending the prefix corresponding to a particular the of data :
"BP" - Block Parts
"C" - Commit
"BH" - BlockHash

etc.

When vote extensions were introduced, a new key type was introduced as well: "EC"

However, within PruneBlocks we are never calling delete on any key prefixed with "EC". See here for where the Commits are deleted. There is no corresponding line to this for extended commits containing vote extensions.