site create PHP Warning: mysqli_num_fields()

[wixaw]

Bug Report

Describe the current, buggy behavior

 wp --allow-root site create --slug=~Prenom.Nom
PHP Warning:  mysqli_num_fields() expects parameter 1 to be mysqli_result, boolean given in /usr/local/WWW/WORDPRESS4/wp_irit3/wp-includes/wp-db.php on line 3283
Warning: mysqli_num_fields() expects parameter 1 to be mysqli_result, boolean given in /usr/local/WWW/WORDPRESS4/wp_irit3/wp-includes/wp-db.php on line 3283

Describe how other contributors can replicate this bug

Create new site

Describe what you would expect as the correct outcome

Clear warning

Let us know what environment you are running this on

OS:	Linux 3.10.0-1062.1.1.el7.x86_64 #1 SMP Fri Sep 13 22:55:44 UTC 2019 x86_64
Shell:	/bin/bash
PHP binary:	/usr/bin/php
PHP version:	7.2.22
php.ini used:	/etc/php.ini
WP-CLI root dir:	phar://wp-cli.phar/vendor/wp-cli/wp-cli
WP-CLI vendor dir:	phar://wp-cli.phar/vendor
WP_CLI phar path:	/usr/local/WWW/WORDPRESS4/wp_irit3
WP-CLI packages dir:	
WP-CLI global config:	
WP-CLI project config:	
WP-CLI version:	2.3.0

Thanks you in advance William