Notification timeline stops loading sometimes

[cgytrus]

Describe the bug Sometimes, the timeline would stop loading, despite continuing to load in new Twitter, and the API itself returning the next cursor. I suspect this is caused by this line, as setting a breakpoint at line 168 reveals end == true and setting it to false with a debugger allows the timeline to continue loading.

Browser Google Chrome v121.0.6167.185

Links https://twitter.com/i/timeline

OldTwitter version 1.8.2.0