Selecting match doesn't expand folded entries in Org files

[bmag]

• Emacs version: 25.2
• Operating system: Linux (openSUSE Tumbleweed)
• ag 2.0.0

Repro steps:

• create a new folder and put in it the file foo.org (see below)
• start emacs: cask exec emacs -Q -l helm-ag.el
• M-x helm-do-ag and select the new folder
• search for "content" and select the only match

Content of foo.org:

#+STARTUP: fold
* Heading 1
** Heading 1.1
   some content
** Heading 1.2
   something else

Actual result:

File foo.org is opened, but the outer heading is folded. It looks like this:

#+STARTUP: fold
* Heading 1...

Expected result:

The heading is expanded. Should look like this:

#+STARTUP: fold
* Heading 1
** Heading 1.1
   some content
** Heading 1.2...