Fixes
#6390

Test instructions:
1) edit file /lanuage/en-GB/en-GB.mod_login.ini
Add at least 30 new placeholders:

MOD_LOGIN_VALUE_USERNAME1="Username"
MOD_LOGIN_VALUE_USERNAME2="Username"
MOD_LOGIN_VALUE_USERNAME3="Username"
MOD_LOGIN_VALUE_USERNAME4="Username"
MOD_LOGIN_VALUE_USERNAME5="Username"
MOD_LOGIN_VALUE_USERNAME6="Username"
MOD_LOGIN_VALUE_USERNAME7="Username"
MOD_LOGIN_VALUE_USERNAME8="Username"
MOD_LOGIN_VALUE_USERNAME9="Username"
MOD_LOGIN_VALUE_USERNAME10="Username"
MOD_LOGIN_VALUE_USERNAME11="Username"
MOD_LOGIN_VALUE_USERNAME12="Username"
MOD_LOGIN_VALUE_USERNAME13="Username"
MOD_LOGIN_VALUE_USERNAME14="Username"
MOD_LOGIN_VALUE_USERNAME15="Username"
MOD_LOGIN_VALUE_USERNAME16="Username"
MOD_LOGIN_VALUE_USERNAME17="Username"
MOD_LOGIN_VALUE_USERNAME18="Username"
MOD_LOGIN_VALUE_USERNAME19="Username"
MOD_LOGIN_VALUE_USERNAME20="Username"
MOD_LOGIN_VALUE_USERNAME21="Username"
MOD_LOGIN_VALUE_USERNAME22="Username"
MOD_LOGIN_VALUE_USERNAME23="Username"
MOD_LOGIN_VALUE_USERNAME24="Username"
MOD_LOGIN_VALUE_USERNAME25="Username"
MOD_LOGIN_VALUE_USERNAME26="Username"
MOD_LOGIN_VALUE_USERNAME27="Username"
MOD_LOGIN_VALUE_USERNAME28="Username"
MOD_LOGIN_VALUE_USERNAME29="Username"
MOD_LOGIN_VALUE_USERNAME30="Username"

2) Backend > Extensions > Language Manager > Overrides
3) Filter > English (en-GB) - Site
3) Click New
4) Search word: username. (The overrides cache must be refreshed (message below search field)! If not log out and log in first!)
5) Search for: Constant
6) Click Search
7) Click More Results

Result: More Results link disappeares but not all MOD_LOGIN_VALUE_USERNAMExy are shown.

Apply patch now and test again. Click More Results until it disappeares. Check if all placeholders are diplayed now.