Fix nil error in StatusFilter (#7470)

Fix #7462

app/models/concerns/status_threading_concern.rb

@@ -74,8 +74,17 @@ module StatusThreadingConcern
     statuses    = statuses_with_accounts(ids).to_a
     account_ids = statuses.map(&:account_id).uniq
     domains     = statuses.map(&:account_domain).compact.uniq
+    relations   = relations_map_for_account(account, account_ids, domains)
+
+    statuses.reject! { |status| filter_from_context?(status, account, relations) }
+
+    # Order ancestors/descendants by tree path
+    statuses.sort_by! { |status| ids.index(status.id) }
+  end
+
+  def relations_map_for_account(account, account_ids, domains)
+    return {} if account.nil?
 
-    relations = if account.present?
     {
       blocking: Account.blocking_map(account_ids, account.id),
       blocked_by: Account.blocked_by_map(account_ids, account.id),
@@ -85,12 +94,6 @@ module StatusThreadingConcern
     }
   end
 
-    statuses.reject! { |status| filter_from_context?(status, account, relations) }
-
-    # Order ancestors/descendants by tree path
-    statuses.sort_by! { |status| ids.index(status.id) }
-  end
-
   def statuses_with_accounts(ids)
     Status.where(id: ids).includes(:account)
   end