Check if c is fullscreen before reparenting it to LyrFloating

Closes: djpohly/dwl#487

dwl.c

@@ -2051,7 +2051,8 @@ setfloating(Client *c, int floating)
 	c->isfloating = floating;
 	if (!c->mon)
 		return;
-	wlr_scene_node_reparent(&c->scene->node, layers[c->isfloating ? LyrFloat : LyrTile]);
+	wlr_scene_node_reparent(&c->scene->node, layers[c->isfullscreen
+			? LyrFS : c->isfloating ? LyrFloat : LyrTile]);
 	arrange(c->mon);
 	printstatus();
 }
@@ -2064,7 +2065,7 @@ setfullscreen(Client *c, int fullscreen)
 		return;
 	c->bw = fullscreen ? 0 : borderpx;
 	client_set_fullscreen(c, fullscreen);
-	wlr_scene_node_reparent(&c->scene->node, layers[fullscreen
+	wlr_scene_node_reparent(&c->scene->node, layers[c->isfullscreen
 			? LyrFS : c->isfloating ? LyrFloat : LyrTile]);
 
 	if (fullscreen) {
@@ -2125,8 +2126,8 @@ setmon(Client *c, Monitor *m, uint32_t newtags)
 		/* Make sure window actually overlaps with the monitor */
 		resize(c, c->geom, 0);
 		c->tags = newtags ? newtags : m->tagset[m->seltags]; /* assign tags of target monitor */
-		setfloating(c, c->isfloating);
 		setfullscreen(c, c->isfullscreen); /* This will call arrange(c->mon) */
+		setfloating(c, c->isfloating);
 	}
 	focusclient(focustop(selmon), 1);
 }