Growing amount of block decoding errors

[m0leynik]

System Information:
Operating system: Ubuntu 20.04.4 LTS
Quorum v22.4.0 9fd8fc28
go version go1.17.8 linux/amd64

Steps to reproduce:

1. Create a private Raft network following instructions from tutorial until step 6 (Start node 1)
2. After step 6 from tutorial stop the node (via Ctrl+C)
3. Start the node once again using the same command
4. Repeat steps 2-3 several times

Actual behavior:
Block decoding errors appear in the log just after the node is restarted (from startRaft function):

INFO [04-22|18:17:00.883] replaying WAL 
INFO [04-22|18:17:00.883] loading WAL 
ERROR[04-22|18:17:00.884] error decoding block:                    err=EOF

Every node restart produces +1 error. The amount of these errors is growing linearly.
For example: 6 restarts - 6 block decoding errors.
So after 6th restart the log looks like:

INFO [04-22|16:22:19.280] replaying WAL 
INFO [04-22|16:22:19.280] loading WAL                              term=0 index=0
ERROR[04-22|16:22:19.280] error decoding block:                    err=EOF
ERROR[04-22|16:22:19.280] error decoding block:                    err=EOF
ERROR[04-22|16:22:19.280] error decoding block:                    err=EOF
ERROR[04-22|16:22:19.280] error decoding block:                    err=EOF
ERROR[04-22|16:22:19.280] error decoding block:                    err=EOF
ERROR[04-22|16:22:19.280] error decoding block:                    err=EOF

Expected behavior:
No growing amount of block decoding errors.

Note:
I also tried different versions of Quorum - v21.10.1, v21.10.2, v22.4.0. The behavior is same.
I'm not sure it's a bug, but at least it looks a bit strange.
Thank you.