Changes lost when editing LDAP Host Names in CloudForms 3.x

Issue

• LDAP authentication for CloudForms appliances, configured via Configure - Configuration - Settings - [appliance] - Authentication.
  Changing the three values under LDAP Host Names and pressing Save, we noticed that CloudForms seems to drop the last change.

Two examples:

1. Before editing, all three fields were populated with three different hostnames:

test01.corplab.company.net
test02.corplab.company.net
test03.corplab.company.net

2. Removed the 2nd and 3rd hostname and pressed save. Afterwards, instead of only listing dc1dccorp01, the fields had this content:

test01.corplab.company.net
test02.corplab.company.net
[empty]

3. The second line was deleted should have been empty, instead of having the content of the previous third line.
   Before editing, the fields had this content:

test01.corp.company.net
[empty]
[empty]

4. We changed the first line to "corp.company.net", added "test02.corp.company.net" in the second line, and clicked Save.
   Afterwards, the lines had this content:

corp.company.net
[empty]
[empty]