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find best_containing even if best chain is shorter (#3657)

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Robert Habermeier
2019-09-20 18:44:19 +02:00
committed by André Silva
parent e434dbdfc5
commit 68cda2fe79
1 changed files with 3 additions and 3 deletions
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substrate/core/client/src/client.rs
+3 -3
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@@ -1704,10 +1704,10 @@ where
let info = self.backend.blockchain().info(); let info = self.backend.blockchain().info();
let canon_hash = self.backend.blockchain().hash(*target_header.number())? // this can be `None` if the best chain is shorter than the target header.
.ok_or_else(|| error::Error::from(format!("failed to get hash for block number {}", target_header.number())))?; let maybe_canon_hash = self.backend.blockchain().hash(*target_header.number())?;
if canon_hash == target_hash { if maybe_canon_hash.as_ref() == Some(&target_hash) {
// if a `max_number` is given we try to fetch the block at the // if a `max_number` is given we try to fetch the block at the
// given depth, if it doesn't exist or `max_number` is not // given depth, if it doesn't exist or `max_number` is not
// provided, we continue to search from all leaves below. // provided, we continue to search from all leaves below.