Merge pull request #2494 from subspace/chain-spec-without-pot-entropy

Fix node start when chain spec doesn't have PoT entropy

Author: nazar-pc

crates/subspace-malicious-operator/src/bin/subspace-malicious-operator.rs

@@ -136,6 +136,7 @@ fn main() -> Result<(), Error> {
                 .get("potExternalEntropy")
                 .map(|d| match d.clone() {
                     Value::String(s) => Ok(s.into_bytes()),
+                    Value::Null => Ok(Vec::new()),
                     _ => Err(sc_service::Error::Other(
                         "Failed to decode PoT initial key".to_string(),
                     )),

crates/subspace-node/src/main.rs

@@ -104,6 +104,7 @@ fn derive_pot_external_entropy(
         .get("potExternalEntropy")
         .map(|d| match d.clone() {
             Value::String(s) => Ok(s),
+            Value::Null => Ok(String::new()),
             _ => Err(sc_service::Error::Other(
                 "Failed to decode PoT initial key".to_string(),
             )),