update repo list

crates/signed_state/src/repo_list.rs

@@ -20,7 +20,8 @@ pub struct RepoListStore {
 impl RepoListStore {
     /// Create a store. If `author` is `None`, all announcements are listed.
     pub fn new(author: Option<PublicKey>, cx: &mut Context<Self>) -> Self {
-        let subscription = cx.subscribe(&Backend::global(cx), |this, _backend, event, cx| {
+        let backend = Backend::global(cx);
+        let subscription = cx.subscribe(&backend, |this, _backend, event, cx| {
             let relevant = match event {
                 BackendEvent::NostrUpdate(update) => {
                     update.kind == Kind::GitRepoAnnouncement
@@ -60,9 +61,10 @@ impl RepoListStore {
     }
 
     fn subscribe_remote(&mut self, cx: &mut Context<Self>) {
+        let backend = Backend::global(cx);
         let author = self.author;
 
-        Backend::global(cx).update(cx, |backend, cx| {
+        backend.update(cx, |backend, cx| {
             let filter = match author {
                 Some(a) => filters::announcements_by(a),
                 None => filters::all_announcements(500),