Merge pull request #5539 from stacks-network/fix/block-validation-version

fix: when validating a block, clone the blocks version

Author: obycode

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 - New RPC endpoints
   - `/v2/clarity/marf/:marf_key_hash`
   - `/v2/clarity/metadata/:principal/:contract_name/:clarity_metadata_key`
+- When a proposed block is validated by a node, the block can be validated even when the block version is different than the node's default ([#5539](https://github.com/stacks-network/stacks-core/pull/5539))
 
 ### Changed
 

stackslib/src/net/api/postblock_proposal.rs

@@ -538,6 +538,10 @@ impl NakamotoBlockProposal {
         }
 
         let mut block = builder.mine_nakamoto_block(&mut tenure_tx);
+        // Override the block version with the one from the proposal. This must be
+        // done before computing the block hash, because the block hash includes the
+        // version in its computation.
+        block.header.version = self.block.header.version;
         let size = builder.get_bytes_so_far();
         let cost = builder.tenure_finish(tenure_tx)?;