Fix default_orientation auto

Since the output config is no longer applied before creating the default
workspace, the layout for default workspaces on an output may not be
correct. Due to the ordering of calls in output_enable being changed in
several bug fix PRs, this just fixes the layout after the call to
apply_output_config.

sway/tree/output.c

@@ -88,11 +88,12 @@ void output_enable(struct sway_output *output, struct output_config *oc) {
 
 	restore_workspaces(output);
 
+	struct sway_workspace *ws = NULL;
 	if (!output->workspaces->length) {
 		// Create workspace
 		char *ws_name = workspace_next_name(wlr_output->name);
 		wlr_log(WLR_DEBUG, "Creating default workspace %s", ws_name);
-		struct sway_workspace *ws = workspace_create(output, ws_name);
+		ws = workspace_create(output, ws_name);
 		// Set each seat's focus if not already set
 		struct sway_seat *seat = NULL;
 		wl_list_for_each(seat, &server.input->seats, link) {
@@ -104,9 +105,15 @@ void output_enable(struct sway_output *output, struct output_config *oc) {
 		ipc_event_workspace(NULL, ws, "init");
 	}
 
-
 	apply_output_config(oc, output);
 
+	if (ws && config->default_orientation == L_NONE) {
+		// Since the output transformation and resolution could have changed
+		// due to applying the output config, the previously set layout for the
+		// created workspace may not be correct for `default_orientation auto`
+		ws->layout = output_get_default_layout(output);
+	}
+
 	input_manager_configure_xcursor();
 
 	wl_signal_add(&wlr_output->events.mode, &output->mode);