adjust to changes in git-refspec (#450)

Author: Byron

git-repository/src/remote/connection/list_refs.rs

@@ -75,7 +75,7 @@ pub mod to_map {
     use git_features::progress::Progress;
     use git_protocol::transport::client::Transport;
 
-    /// The error returned by [`Connection::list_refs_to_mapping()`].
+    /// The error returned by [`Connection::list_refs_to_map()`].
     #[derive(Debug, thiserror::Error)]
     #[allow(missing_docs)]
     pub enum Error {

git-repository/src/remote/mod.rs

@@ -31,6 +31,7 @@ pub mod fetch {
     use crate::bstr::BString;
 
     /// Information about the relationship between our refspecs, and remote references with their local counterparts.
+    #[derive(Debug, Clone)]
     pub struct RefMap {
         /// A mapping between a remote reference and a local tracking branch.
         pub mappings: Vec<Mapping>,
@@ -39,6 +40,7 @@ pub mod fetch {
     }
 
     /// Either an object id that the remote has or the matched remote ref itself.
+    #[derive(Debug, Clone)]
     pub enum Source {
         /// An object id, as the matched ref-spec was an object id itself.
         ObjectId(git_hash::ObjectId),
@@ -47,6 +49,7 @@ pub mod fetch {
     }
 
     /// A mapping between a single remote reference and its advertised objects to a local destination which may or may not exist.
+    #[derive(Debug, Clone)]
     pub struct Mapping {
         /// The reference on the remote side, along with information about the objects they point to as advertised by the server.
         pub remote: Source,