global-hl-todo-mode prevents activation in org

global-hl-todo-mode uses function to activate only for modes that are in the
activate list but are not org-mode.

Reference: 24b9925b1b/hl-todo.el (L185-L188)

Adds a comment re `hl-todo-activate-in-modes` var

CHANGELOG.develop

@@ -957,6 +957,7 @@ Other:
   - Fix doom-modeline in the messages buffer (thanks to duianto)
   - Fix void function error when recentf-save-list is undefined
     (thanks to Compro-Prasad)
+  - =global-hl-todo-mode= prevents activation in org (thanks to Sam Pillsworth)
 *** Layer changes and fixes
 **** Ansible
 - Improvements:

layers/+spacemacs/spacemacs-visual/packages.el

@@ -53,8 +53,10 @@
 (defun spacemacs-visual/init-hl-todo ()
   (use-package hl-todo
     :defer t
-    :init (spacemacs/add-to-hooks 'hl-todo-mode '(text-mode-hook
-                                                  prog-mode-hook))))
+    :init
+    ;; global hook activates hl-todo-mode for prog-mode, text-mode
+    ;; mode can be explicitly defined using hl-todo-activate-in-modes variable
+    (global-hl-todo-mode 1)))
 
 (defun spacemacs-visual/init-popup ())