fix: save-place: don't move point more than once

In some contexts, like org-agenda-switch-to visiting a TODO in an agenda
file, the visiting command will move the cursor after opening the file.
If save-place moves the cursor yet again, the cursor will end up in an
unpredictable place.

lisp/doom-editor.el

@@ -406,6 +406,11 @@ the unwritable tidbits."
     (unless doom-large-file-p
       (apply fn args)))
 
+  (defadvice! doom--inhibit-saveplace-if-point-not-at-bol-a (&rest _)
+    "If something else has moved point, don't try to move it again."
+    :before-while #'save-place-find-file-hook
+    (bobp))
+
   (defadvice! doom--dont-prettify-saveplace-cache-a (fn)
     "`save-place-alist-to-file' uses `pp' to prettify the contents of its cache.
 `pp' can be expensive for longer lists, and there's no reason to prettify cache