Strange progress values in "Downloading Beacon History"

#### System information

Erigon version: `./erigon --version`
```
[INFO] [09-22|07:17:12.860] Build info git_branch=release/3.1 git_tag=v3.1.0-rc1-33-g8a0549d git_commit=8a0549d830d9c95aea7c5f5ebaf89c99fb96518c
```

OS & Version: Windows/Linux/OSX: `Ubuntu 24.04.3 LTS (Noble Numbat), AMD64, 64GB RAM`

Commit hash:

Erigon Command (with flags/config): See in #17184

Chain/Network: `Sepolia`

#### Expected behaviour
First number in the progress output represents completed amount while second number represents total.

#### Actual behaviour
First number is higher than second one.

#### Steps to reproduce the behaviour
Start erigon node.

#### Backtrace

````
[INFO] [09-22|09:19:24.593] P2P app=caplin peers=127
[INFO] [09-22|09:19:24.601] Downloading Beacon History progress=84944/55345 blk/sec=10.6
[INFO] [09-22|09:19:54.600] Downloading Beacon History progress=85248/55345 blk/sec=10.1
````
`85248 > 55345`