adapt to changes in gix-protocol

Author: Byron

gitoxide-core/src/pack/receive.rs

@@ -140,10 +140,13 @@ impl gix::protocol::fetch::Negotiate for Negotiate<'_> {
         })
     }
 
-    fn add_wants(&mut self, arguments: &mut Arguments, _remote_ref_target_known: &[bool]) {
+    fn add_wants(&mut self, arguments: &mut Arguments, _remote_ref_target_known: &[bool]) -> bool {
+        let mut has_want = false;
         for id in self.refmap.mappings.iter().filter_map(|m| m.remote.as_id()) {
             arguments.want(id);
+            has_want = true;
         }
+        has_want
     }
 
     fn one_round(

gix/src/remote/connection/fetch/receive_pack.rs

@@ -274,15 +274,15 @@ impl gix_protocol::fetch::Negotiate for Negotiate<'_, '_, '_> {
         )
     }
 
-    fn add_wants(&mut self, arguments: &mut Arguments, remote_ref_target_known: &[bool]) {
+    fn add_wants(&mut self, arguments: &mut Arguments, remote_ref_target_known: &[bool]) -> bool {
         negotiate::add_wants(
             self.objects,
             arguments,
             self.ref_map,
             remote_ref_target_known,
             self.shallow,
             negotiate::make_refmapping_ignore_predicate(self.tags, self.ref_map),
-        );
+        )
     }
 
     fn one_round(