`tenermint reset-state` does not remove application.db

[rootulp]

Context

• https://docs.celestia.org/nodes/consensus-node#faq
• Telegram chat with a validator that forgot to provide --v2-upgrade-height flag.

Problem

celestia-appd tendermint reset-state does not remove application.db

$ celestia-appd tendermint reset-state
I[2024-09-18|12:06:16.915] Removed all blockstore.db                    dir=/Users/rootulp/.celestia-app/data/blockstore.db
I[2024-09-18|12:06:16.915] Removed all state.db                         dir=/Users/rootulp/.celestia-app/data/state.db
I[2024-09-18|12:06:16.916] Removed all cs.wal                           dir=/Users/rootulp/.celestia-app/data/cs.wal
I[2024-09-18|12:06:16.916] Removed all evidence.db                      dir=/Users/rootulp/.celestia-app/data/evidence.db
I[2024-09-18|12:06:16.916] Removed tx_index.db                          dir=/Users/rootulp/.celestia-app/data/tx_index.db

$ ls -al ~/.celestia-app/data
total 8
drwx------   6 rootulp  staff  192 Sep 18 12:06 .
drwxr-xr-x   5 rootulp  staff  160 Sep 18 12:05 ..
drwxr-xr-x   7 rootulp  staff  224 Sep 18 12:05 application.db
-rw-------   1 rootulp  staff  384 Sep 18 12:05 priv_validator_state.json
drwxr-xr-x   3 rootulp  staff   96 Sep 18 12:05 snapshots
drwx------  14 rootulp  staff  448 Sep 18 12:05 traces

Proposal

Add an extra step to these docs to instruct node operators to remove application.db