commands: add ancestor info to unconfirmed coins

src/commands/mod.rs

@@ -506,11 +506,23 @@ impl DaemonControl {
                 }
             }
             coins
-                .into_values()
-                .map(|c| {
+                .into_iter()
+                .map(|(op, c)| {
+                    let ancestor_info = if c.block_info.is_none() {
+                        // We include any non-change coins here as they have been selected by the caller.
+                        // If the unconfirmed coin's transaction is no longer in the mempool, keep the
+                        // coin as a candidate but without any ancestor info (same as confirmed candidate).
+                        self.bitcoin
+                            .mempool_entry(&op.txid)
+                            .map(AncestorInfo::from_mempool_entry)
+                    } else {
+                        None
+                    };
                     coin_to_candidate(
-                        &c, /*must_select=*/ true, /*sequence=*/ None,
-                        /*ancestor_info=*/ None,
+                        &c,
+                        /*must_select=*/ true,
+                        /*sequence=*/ None,
+                        ancestor_info,
                     )
                 })
                 .collect()