allowing swap() for first master client

view.c

@@ -260,8 +260,9 @@ zoom(Arg *arg) {
 	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 		n++;
 
-	c = sel;
+	if((c = sel) == nexttiled(clients))
-	if((arrange != dofloat) && c != nexttiled(clients)) {
+		if(!(c = nexttiled(c->next)))
+			return;
 	detach(c);
 	if(clients)
 		clients->prev = c;
@@ -269,5 +270,4 @@ zoom(Arg *arg) {
 	clients = c;
 	focus(c);
 	arrange();
-	}
 }