Fix infinite loading instead of soft 404 for non-existing remote accounts (#21303)

Fixes #21278, #21021

1 files changed, 7 insertions, 1 deletions

diff --git a/app/javascript/mastodon/features/account_timeline/index.js b/app/javascript/mastodon/features/account_timeline/index.js
index 525837c72..bdb430a33 100644
--- a/app/javascript/mastodon/features/account_timeline/index.js
+++ b/app/javascript/mastodon/features/account_timeline/index.js
@@ -26,7 +26,13 @@ const emptyList = ImmutableList();
 const mapStateToProps = (state, { params: { acct, id, tagged }, withReplies = false }) => {
   const accountId = id || state.getIn(['accounts_map', normalizeForLookup(acct)]);
 
-  if (!accountId) {
+  if (accountId === null) {
+    return {
+      isLoading: false,
+      isAccount: false,
+      statusIds: emptyList,
+    };
+  } else if (!accountId) {
     return {
       isLoading: true,
       statusIds: emptyList,