Suspected bug: '#+STARTUP: indent' messes up inlinetasks' tag alignment

[Alain.Cochard@unistra.fr]

Hello.

I use

emacs -Q -l ~/.emacs.git

with ~/.emacs.git containing only:

   (add-to-list 'load-path "~/Org/Coch-git/org-mode/lisp")
   (require 'org-inlinetask)

which gives:

   Org mode version 9.5.4 (release_9.5.4-727-gb42883 @
   /home/cochard/Org/Coch-git/org-mode/lisp/) GNU Emacs 27.2 (build 1,
   x86_64-redhat-linux-gnu, GTK+ Version 3.24.30, cairo version
   1.17.4) of 2021-08-07

Then, to observe the problem, I can for example compare

(1) visiting the file pb.org containing:

   #+STARTUP: noindent
   * headline 1                               :htag:
   *************** inelinetask             :itag:
   *************** END
   * headline 2                       :htag:

and doing C-u C-c C-q,  to 

(2) the same, but with 'indent' instead of 'noindent'.

For me, all 3 tags end up perfectly aligned in the case (1), while
':itag:' is shifted to the right in case (2).

NB: I observe a consistent (bad) behavior by customizing
org-startup-indented.

Regards.

-- 
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