===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/window.c,v
retrieving revision 1.185
retrieving revision 1.186
diff -u -r1.185 -r1.186
--- src/usr.bin/tmux/window.c	2017/02/27 13:07:57	1.185
+++ src/usr.bin/tmux/window.c	2017/03/13 17:20:11	1.186
@@ -1,4 +1,4 @@
-/* $OpenBSD: window.c,v 1.185 2017/02/27 13:07:57 nicm Exp $ */
+/* $OpenBSD: window.c,v 1.186 2017/03/13 17:20:11 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -588,12 +588,16 @@
 		other = w->active;
 
 	wp = window_pane_create(w, w->sx, w->sy, hlimit);
-	if (TAILQ_EMPTY(&w->panes))
+	if (TAILQ_EMPTY(&w->panes)) {
+		log_debug("%s: @%u at start", __func__, w->id);
 		TAILQ_INSERT_HEAD(&w->panes, wp, entry);
-	else if (before)
+	} else if (before) {
+		log_debug("%s: @%u before %%%u", __func__, w->id, wp->id);
 		TAILQ_INSERT_BEFORE(other, wp, entry);
-	else
+	} else {
+		log_debug("%s: @%u after %%%u", __func__, w->id, wp->id);
 		TAILQ_INSERT_AFTER(&w->panes, other, wp, entry);
+	}
 	return (wp);
 }