Multiple LDAP Failed Login Attempts for one failure

[servomekanism]

Steps to reproduce

1. Setup two primary domain controllers (as with the usual best practices)
2. Configure OwnCloud to use ldap for both servers (using backup replica host for the second)
3. Attempt to do a failed login from the Web Interface
4. Monitor the login failures at the windows DC event viewer
5. You will notice 4 failed login attempts, instead of just one. Two failed logins for each DC

Expected behaviour

One failed login attempt

Actual behaviour

If for example, the domain policy is to have an account locked out after 3 failed login attempts, the account gets locked out immediately since 4 attempts are made.

Server configuration

Operating system:
Debian 9 stable

Web server:
Apache

Database:
Mariadb

PHP version:
Latest

ownCloud version: (see ownCloud admin page)
10.0.8 (stable)

Updated from an older ownCloud or fresh install:
No

Where did you install ownCloud from:
Download from the upstream from the sources.lst provided by owncloud

[ownclouders]

GitMate.io thinks possibly related issues are #7803 (LDAP login produces multiple bind failed messages), #31465 (Missing symfony event for failed login attempt), #18014 (Failed to login), #24743 (Failing login with LDAP users.), and #8054 (LDAP login failes when number of search results is limited).

[servomekanism]

These issues aren't the same as the one reported here.

[karakayasemi]

It could be related to this issue if you trying to log in with e-mail address: #28234 . I described why it is happening in this comment: #28234 (comment)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 10 days if no further activity occurs. Thank you for your contributions.