This happens sometimes when I click on the margin to switch views:
Traceback (most recent call last):
File "/opt/sublime_text/sublime_plugin.py", line 319, in on_deactivated
callback.on_deactivated(v)
File "/opt/sublime_text/Packages/Default.sublime-package/history_list.py", line 199, in on_deactivated
get_jump_history(view.window().id()).push_selection(view)
File "/opt/sublime_text/Packages/Default.sublime-package/history_list.py", line 32, in push_selection
region_list = list(view.sel())
File "/opt/sublime_text/sublime.py", line 446, in __getitem__
if r.a == -1:
AttributeError: ‘NoneType’ object has no attribute ‘a’
error: plugin_host has exited unexpectedly, plugin functionality won’t be available until Sublime Text has been restarted