Error if the admin DN is not correct when the setup

Description

If the admin DN is incorrect when we click on verify we have that

 Fatal error: Uncaught TypeError: Return value of setupStepLdap::check() must be of the type array, none returned in /usr/share/fusiondirectory/setup/class_setupStepLdap.inc:222 Stack trace: #0 /usr/share/fusiondirectory/setup/class_setup.inc(108): setupStepLdap->check() #1 /usr/share/fusiondirectory/setup/class_setup.inc(308): setup->save_object() #2 /usr/share/fusiondirectory/html/setup.php(104): setup::mainInc() #3 {main} thrown in /usr/share/fusiondirectory/setup/class_setupStepLdap.inc on line 222

Distribution Name and Version

Centos 7

FusionDirectory Version

1.4

PHP version used

7

Origin of php packages

Remi repo

Steps to Reproduce

1. Setup FD
2. Insert a wrong admin DN like "cn=admin,dc=nodomain instead of cn=Manger,dc=mydomain)

Expected behavior:

No php errors

Actual behavior:

There is a php error

Reproduces how often: 100