fix block import

hive_integration/nodocker/graphql/init/genesis.json

@@ -12,6 +12,7 @@
     "muirGlacierBlock": 33,
     "berlinBlock": 33,
     "londonBlock": 33,    
+    "mergeForkBlock": 33,
     "terminalTotalDifficulty": 4357120,
     "shanghaiTime": 1444660030    
   },

nimbus/core/block_import.nim

@@ -24,6 +24,10 @@ proc importRlpBlock*(blocksRlp: openArray[byte]; com: CommonRef; importFile: str
     header: BlockHeader
     body: BlockBody
 
+  # The following kludge is needed for the `LegacyDbPersistent` type database
+  # when `pruneTrie` is enabled. For other cases, this code is irrelevant.
+  com.db.compensateLegacySetup()
+
   # even though the new imported blocks have block number
   # smaller than head, we keep importing it.
   # it maybe a side chain.