[5.0] P2P: Fix handling of known pending block #6533

Job	Run time
Discover Versions	7s
Platform Cache / Discover Platforms	5s
Platform Cache / Build Platforms (none)	2s
Run Build Workflow / Build leap (reproducible)	8m 28s
Run Build Workflow / Build leap (ubuntu20)	6m 46s
Run Build Workflow / Build leap (ubuntu22)	7m 57s
Build deb packages (ubuntu20)	9m 41s
NP Tests (ubuntu20)	6m 35s
Build deb packages (ubuntu22)	10m 19s
LR Tests (ubuntu20)	24m 9s
NP Tests (ubuntu22)	5m 8s
Tests (ubuntu20)	3m 16s
Build deb packages (reproducible)	9m 0s
LR Tests (ubuntu22)	24m 7s
NP Tests (ubuntu20repro)	6m 28s
Tests (ubuntu22)	3m 19s
LR Tests (ubuntu20repro)	23m 55s
NP Tests (ubuntu22repro)	5m 9s
Tests (ubuntu20repro)	3m 26s
LR Tests (ubuntu22repro)	23m 57s
Tests (ubuntu22repro)	3m 24s
libtester tests (ubuntu20, build-tree)	7m 40s
libtester tests (ubuntu20, make-dev-install)	7m 47s
libtester tests (ubuntu20, deb-install)	4m 13s
libtester tests (ubuntu22, build-tree)	7m 21s
libtester tests (ubuntu22, make-dev-install)	7m 22s
libtester tests (ubuntu22, deb-install)	4m 4s
All Required Tests Passed	1s
	3h 43m 46s

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