Repro steps:
Make this plugin:
[code]import sublime, sublime_plugin
class ViewIdListener(sublime_plugin.EventListener):
def on_modified(self, view):
print(view.id(), sublime.active_window().active_view().id())
[/code]
Open a file.
File>new view into file.
Modify the original -> same IDs.
Modify the clone -> the passed-in view’s ID is different than the modified view’s ID.