update checkout store

crates/signed_core/src/model.rs

@@ -271,6 +271,11 @@ impl Announcement {
         crate::repo_addr(self.owner, self.id.clone())
     }
 
+    /// The name of the repository, or a default if none is provided.
+    pub fn name(&self) -> String {
+        self.name.clone().unwrap_or("Untitled".into())
+    }
+
     /// Whether this announcement is a fork of the repository at `base`.
     /// Its `u` tag points at `base`, which also covers permanent forks whose EUC diverged.
     ///