Fix crashes with borders

sway/border.c

@@ -253,12 +253,14 @@ void render_view_borders(wlc_handle view) {
 		// update window title
 		const char *new_name = wlc_view_get_title(view);
 
-		if (new_name && strcmp(c->name, new_name) != 0) {
+		if (new_name) {
+			if (!c->name || strcmp(c->name, new_name) != 0) {
 				free(c->name);
 				c->name = strdup(new_name);
 				update_view_border(c);
 			}
 		}
+	}
 
 	if (c->border) {
 		wlc_pixels_write(WLC_RGBA8888, &c->border_geometry, c->border);