Merge branch 'murisi/conversion-loading-fix' (#1244) into maint-0.14

* murisi/conversion-loading-fix:
  Now load conversions from storage even for epoch 1.
  Added record to changelog.

.changelog/unreleased/bug-fixes/1244-conversion-loading-fix.md

@@ -0,0 +1,2 @@
+- Now load conversions from storage even for epoch 1.
+  ([\#1244](https://github.com/anoma/namada/pull/1244))

core/src/ledger/storage/mod.rs

@@ -404,7 +404,7 @@ where
             // Rebuild Merkle tree
             self.block.tree = MerkleTree::new(merkle_tree_stores)
                 .or_else(|_| self.get_merkle_tree(height))?;
-            if self.last_epoch.0 > 1 {
+            if self.last_epoch.0 > 0 {
                 // The derived conversions will be placed in MASP address space
                 let masp_addr = masp();
                 let key_prefix: Key = masp_addr.to_db_key().into();