* org.el (org-set-regexps-and-options): Fix

* org.el (org-set-regexps-and-options): Allow
`org-complex-heading-regexp-format' to match [/] and [%]
cookies when they are both before and after the heading.

Thanks to Nicolas Bercher for reporting this.

lisp/org.el

@@ -5109,9 +5109,9 @@ Support for group tags is controlled by the option
 		    "\\(?: +\\(\\[#.\\]\\)\\)?"
 		    "\\(?: +"
 		    ;; Stats cookies can be stuck to body.
-		    "\\(?:\\[[0-9%%/]+\\] *\\)?"
+		    "\\(?:\\[[0-9%%/]+\\] *\\)*"
 		    "\\(%s\\)"
-		    "\\(?: *\\[[0-9%%/]+\\]\\)?"
+		    "\\(?: *\\[[0-9%%/]+\\]\\)*"
 		    "\\)"
 		    (org-re "\\(?:[ \t]+\\(:[[:alnum:]_@#%%:]+:\\)\\)?")
 		    "[ \t]*$")