Fix clocking on capture completion

* lisp/org-capture.el (org-capture-finalize): Fix clock in of interrupted
task during capture finalize

Calling org-capture-get inside the org-with-point-at macro does not
work when the current clocking task and the capture target buffer are
the same.  In this case the captured task would continue clocking
instead of switching back to the previously clocking task.

lisp/org-capture.el

@@ -467,8 +467,9 @@ bypassed."
 	       (markerp (org-capture-get :interrupted-clock 'local))
 	       (buffer-live-p (marker-buffer
 			       (org-capture-get :interrupted-clock 'local))))
-      (org-with-point-at (org-capture-get :interrupted-clock 'local)
-	(org-clock-in))
+      (let ((clock-in-task (org-capture-get :interrupted-clock 'local)))
+	(org-with-point-at clock-in-task
+	  (org-clock-in)))
       (message "Interrupted clock has been resumed")))
 
   (let ((beg (point-min))