put back r1.68 which allows an empty group to be sticky; behavior

change noticed by Thomas Pfaff and diagnosis why we need to
group_setactive in this case by Alexander Polakov.  replace XXX with
a useful comment.

1 files changed, 6 insertions, 2 deletions

diff --git a/group.c b/group.c
index 5a75bff..8cde005 100644
--- a/group.c
+++ b/group.c
@@ -16,7 +16,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $OpenBSD: group.c,v 1.69 2013/01/10 15:28:11 okan Exp $
+ * $OpenBSD: group.c,v 1.70 2013/01/13 13:55:12 okan Exp $
  */
 
 #include <sys/param.h>
@@ -269,8 +269,12 @@ group_hidetoggle(struct screen_ctx *sc, int idx)
 
 	if (gc->hidden)
 		group_show(sc, gc);
-	else
+	else {
 		group_hide(sc, gc);
+		/* make clients stick to empty group */
+		if (TAILQ_EMPTY(&gc->clients))
+			group_setactive(sc, idx);
+	}
 }
 
 void