When administrating users, some input variables are not properly checked

[battery-hue]

Describe the bug
I have enabled 'Log Input Validation Issues'. When i save any of my user's settings (in Console -> Configuration -> Users -> User Settings), this message is logged:

01.Nov.2019 08:30:58 - CMDPHP Input Validation Not Performed for 'id' Backtrace: (/user_admin.php[46]:form_save(), /user_admin.php[612]:get_request_var(), /lib/html_utility.php[346]:html_log_input_error(), /lib/html_validate.php[44]:cacti_debug_backtrace())

To Reproduce
Steps to reproduce the behavior:

1. Enable Log Input Validation Issues
   2.Nativate to Console -> Configuration -> Users -> [select any user] -> User Settings
2. Make any change to user's settings
3. Check logs

Expected behavior
To be able to make change to user settings without failing input validation

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: MacOS
• Browser: Safari
• Version: 13.0.2

Smartphone (please complete the following information):
N/A

Additional context
I have noticed, on occasion, that my log file has a few "Input Validation Not Performed for 'id' Backtrace: " errors messages. As of this report, I am only able to verify error is triggered when making changes to user settings. I have not yet be able to identify why/when the other errors are triggered.

[netniV]

A few have been fixed in the dev version so if you have the dev version they may be resolved

[cigamit]

Just did a double check, and though although this issue is not there any longer, there were a few cases where there is no pre-validation. This is not a problem due to us using prepared statements, but to keep the log clean, I have corrected them anyway. Commit coming shortly.