It's value is set to `nil`.

Ihor Radchenko <yantar92@posteo.net> writes:

> Sébastien Gendre <seb@k-7.ch> writes:
>
>> Rectification: Adding a "#+STARTUP: overview" on top of my habits
>> org-mode file did not change anything with org-agenda follow indirect
>> buffer.
>>
>> Yes, if I manually open my habits org-mode file everything is folded.
>> And if I unfold a task, its drawers are still folded. Which is correct.
>>
>> But when the same task is shown on an indirect buffer by org-agenda
>> follow mode, every drawers are unfolded.
>
> Maybe you changed the default value of `org-agenda-inhibit-startup'.