From 965b60f58512b009778b7b5279394bf01d407c3f Mon Sep 17 00:00:00 2001
From: Psionik K <73710933+psionic-k@users.noreply.github.com>
Date: Wed, 10 Jan 2024 22:37:28 +0900
Subject: [PATCH] org-macs.el: org-do-remove-indentation correction

* lisp/org-macs.el (org-do-remove-indentation): set
`buffer-invisibility-spec' to nil before detecting the column or
moving to a column.

This fixes src_block indentation removal for org-modern-mode but will
also correct other cases of hidden indentation.
---
 lisp/org-macs.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/org-macs.el b/lisp/org-macs.el
index 8def5cbb..7f5d2ad8 100644
--- a/lisp/org-macs.el
+++ b/lisp/org-macs.el
@@ -408,7 +408,8 @@ line.  Return nil if it fails."
 	;; Remove exactly N indentation, but give up if not possible.
         (when skip-fl (forward-line))
 	(while (not (eobp))
-	  (let ((ind (progn (skip-chars-forward " \t") (current-column))))
+	  (let* ((buffer-invisibility-spec nil)
+                 (ind (progn (skip-chars-forward " \t") (current-column))))
 	    (cond ((< ind n)
                    (if (eolp) (delete-region (line-beginning-position) (point))
                      (throw :exit nil)))
-- 
2.42.0