Flaky TestHare_ReconstructForward

[fasmat]

Description

Test failed in a PR without code changes.

Affected code

TestHare_ReconstructForward failed in this CI run: https://github.com/spacemeshos/go-spacemesh/actions/runs/10580781921/job/29316533825:

=== FAIL: hare4 TestHare_ReconstructForward (unknown)
2024-08-27T15:18:10.671Z	INFO	hare4/hare.go:280	registered signing key	{"id": "892c51"}
[202](https://github.com/spacemeshos/go-spacemesh/actions/runs/10580781921/job/29316533825#step:14:203)4-08-27T15:18:10.671Z	INFO	hare4/hare.go:300	started	{"enabled": false, "enabled layer": 0, "disabled layer": 4294967295, "committee": 50, "leaders": 5, "iterations limit": 4, "preround delay": "25s", "round duration": "12s", "log stats": true, "p2p protocol": "/h/4.0", "enabled": 8, "disabled": 4294967295}
2024-08-27T15:18:10.774Z	INFO	hare4/hare.go:280	registered signing key	{"id": "bcc78c"}
2024-08-27T15:18:10.774Z	INFO	hare4/hare.go:300	started	{"enabled": false, "enabled layer": 0, "disabled layer": 4294967295, "committee": 50, "leaders": 5, "iterations limit": 4, "preround delay": "25s", "round duration": "12s", "log stats": true, "p2p protocol": "/h/4.0", "enabled": 8, "disabled": 4294967295}
2024-08-27T15:18:10.791Z	INFO	hare4/hare.go:280	registered signing key	{"id": "5fd47e"}
2024-08-27T15:18:10.791Z	INFO	hare4/hare.go:300	started	{"enabled": false, "enabled layer": 0, "disabled layer": 4294967295, "committee": 50, "leaders": 5, "iterations limit": 4, "preround delay": "25s", "round duration": "12s", "log stats": true, "p2p protocol": "/h/4.0", "enabled": 8, "disabled": 4294967295}
2024-08-27T15:18:10.794Z	DEBUG	hare4/hare.go:309	notified	{"layer": 8}
2024-08-27T15:18:10.794Z	DEBUG	hare4/hare.go:309	notified	{"layer": 8}
2024-08-27T15:18:10.794Z	DEBUG	hare4/hare.go:309	notified	{"layer": 8}
2024-08-27T15:18:10.794Z	DEBUG	hare4/hare.go:599	registered layer	{"lid": 8}
2024-08-27T15:18:10.795Z	DEBUG	hare4/hare.go:599	registered layer	{"lid": 8}
2024-08-27T15:18:10.809Z	DEBUG	hare4/hare.go:642	active in preround. waiting for preround delay	{"lid": 8}
2024-08-27T15:18:10.809Z	DEBUG	hare4/hare.go:764	requested proposals	{"lid": 8, "beacon": "01010101"}
panic: layer 8 is not registered

goroutine 2286 [running]:
github.com/spacemeshos/go-spacemesh/hare4.TestHare_ReconstructForward.func1({0x23e4ba0, 0xc000427ea0}, {0xc000848848?, 0x40f0de?}, {0xc000244240, 0xbf, 0xbf})
	/home/runner/work/go-spacemesh/go-spacemesh/hare4/hare_test.go:1[216](https://github.com/spacemeshos/go-spacemesh/actions/runs/10580781921/job/29316533825#step:14:217) +0x57f
reflect.Value.call({0x1ceb960?, 0xc00051f2a0?, 0xc000849008?}, {0x1f03d72, 0x4}, {0xc00053de50, 0x3, 0x53f277?})
	/opt/hostedtoolcache/go/1.22.6/x64/src/reflect/value.go:596 +0xd5d
reflect.Value.Call({0x1ceb960?, 0xc00051f2a0?, 0xc0008490a0?}, {0xc00053de50, 0x3, 0x3})
	/opt/hostedtoolcache/go/1.22.6/x64/src/reflect/value.go:380 +0xb6
go.uber.org/mock/gomock.(*Call).Do.func1({0xc0006a93b0, 0x3, 0xc0006046e0?})
	/home/runner/go/pkg/mod/go.uber.org/mock@v0.4.0/gomock/call.go:179 +0x852
go.uber.org/mock/gomock.(*Controller).Call(0xc0005fdc80, {0x1d3fe40, 0xc0006046e0}, {0x1f0751e, 0x7}, {0xc0006a93b0, 0x3, 0x3})
	/home/runner/go/pkg/mod/go.uber.org/mock@v0.4.0/gomock/controller.go:229 +0x11d
github.com/spacemeshos/go-spacemesh/p2p/pubsub/mocks.(*MockPublishSubscriber).Publish(0xc0006046e0, {0x23e4ba0, 0xc000427ea0}, {0x1f05a43, 0x6}, {0xc000244240, 0xbf, 0xbf})
	/home/runner/work/go-spacemesh/go-spacemesh/p2p/pubsub/mocks/publisher.go:171 +0x237
github.com/spacemeshos/go-spacemesh/hare4.(*Hare).onOutput(0xc000762c00, 0xc0004b9a80, {0x0?, 0x0?}, {0x0, {0x0, 0x0, 0x0}, 0x0, 0xc0000d0500})
	/home/runner/work/go-spacemesh/go-spacemesh/hare4/hare.go:734 +0xcb9
github.com/spacemeshos/go-spacemesh/hare4.(*Hare).run(0xc000762c00, 0xc0004b9a80)
	/home/runner/work/go-spacemesh/go-spacemesh/hare4/hare.go:653 +0x91d
github.com/spacemeshos/go-spacemesh/hare4.(*Hare).onLayer.func1()
	/home/runner/work/go-spacemesh/go-spacemesh/hare4/hare.go:601 +0x5e
golang.org/x/sync/errgroup.(*Group).Go.func1()
	/home/runner/go/pkg/mod/golang.org/x/sync@v0.8.0/errgroup/errgroup.go:78 +0x92
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine [224](https://github.com/spacemeshos/go-spacemesh/actions/runs/10580781921/job/29316533825#step:14:225)3
	/home/runner/go/pkg/mod/golang.org/x/sync@v0.8.0/errgroup/errgroup.go:75 +0x125