Fix a very ancient bug from mid 2015 #2021
Merged
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Introduced in c701839#diff-2e2ff25b7bc057a741bf93c35ae3b624R42 (committed on 10 Jul 2015). Survived all the refactoring for almost 3 years 🙈 and was revealed by 525c049#diff-49ff8fea774f647034a130c40d4f3c65R519 (as a part of #1856) by causing silent crashes on multiple nodes (testnet). v0.12.2.x and earlier branches/versions aren't affected (do not crash), they simply print meaningless log entry.