From 1c65da735b727eb29a01de625027e876f0707d9b Mon Sep 17 00:00:00 2001
From: Carlos Proensa <proensa@gmail.com>
Date: Tue, 19 Nov 2019 13:30:48 +0100
Subject: [PATCH] Use empty default selection for project list.

Use a default empty value in the project list in manage project page,
subprojects section. This is the same behavior as the other project
selectors.

Fixes: #26367
---
 manage_proj_edit_page.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/manage_proj_edit_page.php b/manage_proj_edit_page.php
index 1fbdc67b2c..c59170a46b 100644
--- a/manage_proj_edit_page.php
+++ b/manage_proj_edit_page.php
@@ -254,7 +254,8 @@
 			<fieldset>
 				<?php echo form_security_field( 'manage_proj_subproj_add' ) ?>
 				<input type="hidden" name="project_id" value="<?php echo $f_project_id ?>" />
-				<select name="subproject_id" class="input-sm"><?php
+				<select name="subproject_id" class="input-sm" required>
+				<option selected disabled value=""><?php echo '[', lang_get( 'select_project_button' ), ']' ?></option><?php
 				$t_all_subprojects = project_hierarchy_get_subprojects( $f_project_id, true );
 				$t_all_subprojects[] = $f_project_id;
 				$t_manage_access = config_get( 'manage_project_threshold' );