LES client panics after syncing is done

[s1na]

System information

Geth version: Version: 1.10.18-unstable Git Commit: 25bd17d725db5378b3611ac077506dc09e940a77
OS & Version: OSX

What happened

Immediately after the light client finished syncing from a local light server it crashed.

DEBUG[03-30|09:21:27.166] Fetching batch of headers                id=0eaf38fb12f42c09 conn=dyndial count=192  fromnum=6,623,214 skip=0   reverse=false
TRACE[03-30|09:21:27.167] Light Ethereum message arrived           id=0eaf38fb12f42c09 conn=dyndial code=3  bytes=16
TRACE[03-30|09:21:27.167] Received block header response message   id=0eaf38fb12f42c09 conn=dyndial
INFO [03-30|09:21:27.167] Imported new block headers               count=2    elapsed=1.633ms   number=6,623,213 hash=9cd49a..f77956 age=13h22m31s
DEBUG[03-30|09:21:27.168] Synchronise finished                     elapsed=2m22.876s
INFO [03-30|09:21:27.558] Storing bloom trie                       section=201 head=d764fc53973d2d80887b70196ab2bbd1ee802878a347bcacd3ea881424ccb4fd root=041dfbb3335d21f8d9d2dd8d58b2e45f469eab888b2575879074bc46069e1690 compression=0.460
INFO [03-30|09:21:28.264] Storing CHT                              section=201 head=d764fc53973d2d80887b70196ab2bbd1ee802878a347bcacd3ea881424ccb4fd root=06a4b2487785d1914b65dae0e4f8284570798a19f74f717c0432f5822862c15c


panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x1c0 pc=0x486e884]
                                                                                                                                                                                                                          goroutine 205 [running]:
github.com/ethereum/go-ethereum/les.(*lightFetcher).mainloop(0xc0003aedc0)
        github.com/ethereum/go-ethereum/les/fetcher.go:445 +0x21a4
created by github.com/ethereum/go-ethereum/les.(*lightFetcher).start
        github.com/ethereum/go-ethereum/les/fetcher.go:198 +0x87

[s1na]

The commands I used were. For server:

make geth && ./build/bin/geth --goerli --maxpeers 3 --nodiscover --light.serve 25 --light.maxpeers 2 --light.nosyncserve

For client:

make geth && ./build/bin/geth --goerli --http --http.port 10545 --http.api 'eth,debug' --maxpeers 1 --nodiscover --syncmode 'light' --port 20202 --ulc.servers 'enode://...' --datadir ../goerli-light