Add test

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

test/pleroma/user_test.exs

@@ -2953,4 +2953,26 @@ test "it checks fields links for a backlink" do
 
     assert is_binary(verified_at)
   end
+
+  test "updating fields does not invalidate previously validated links" do
+    user = insert(:user, ap_id: "https://social.example.org/users/lain")
+
+    user
+    |> User.update_and_set_cache(%{
+      raw_fields: [%{"name" => "verified link", "value" => "http://example.com/rel_me/link"}]
+    })
+
+    ObanHelpers.perform_all()
+
+    %User{fields: [%{"verified_at" => verified_at}]} = user = User.get_cached_by_id(user.id)
+
+    user
+    |> User.update_and_set_cache(%{
+      raw_fields: [%{"name" => "Verified link", "value" => "http://example.com/rel_me/link"}]
+    })
+
+    user = User.get_cached_by_id(user.id)
+
+    assert [%{"verified_at" => ^verified_at}] = user.fields
+  end
 end