org-clock.el: Fix clocktable scope parameter

* lisp/org-clock.el (org-dblock-write:clocktable): Make sure to eval
  the scope if it is a lisp expression, or to return the scope if it
  is just a list.

This adds back to the clocktable the capacity to have as scope both a
list of file paths or a function that returns such a list.

---
 lisp/org-clock.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/org-clock.el b/lisp/org-clock.el
index 65c13fd..18bb443 100644
--- a/lisp/org-clock.el
+++ b/lisp/org-clock.el
@@ -2370,7 +2370,8 @@ the currently selected interval size."
 		    (`file-with-archives
 		     (and buffer-file-name
 			  (org-add-archive-files (list buffer-file-name))))
-		    ((pred consp) scope)
+                    ((and (pred #'listp) (pred (lambda (scope) (symbolp (car scope))))) (eval scope))
+                    ((pred listp) scope)
 		    (_ (or (buffer-file-name) (current-buffer)))))
 	   (block (plist-get params :block))
 	   (ts (plist-get params :tstart))
--

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