Display AD displayName in place of userName

In versions 10.6., 10.7 and maybe (10.5), after login, the system displays the login/username and not the name of the person logged in as it did before.
For example, I log in with username BS8345. In the top right I want to see the name "Smith Brian" but in these newer versions it shows BS8345.
I couldn't find any way in the app to change this information. The manual solution to work around this problem is as follows:
After compiling, edit the ad.php file and modify as below.

File : classes/security/ad.php

line 266 : // "username" => $loginUsername
line 267 : "username" => $displayName

(Attention, after each compilation, the file will be overwritten and the operation will have to be repeated.)

@Serguey : possible to correct this problem in a future version ?
Thanks in advance and kid regards