DropDown not working

Hello,

we use a custom dropdown for different salaries. The problem is, that we have to enter the values among each other what causes all values (except the last) having a linebreak at the end.
But the value stored in the database does not have that linebreak.

So for example if you select the third value of the dropdown, save the page and then reload the page the first value is selected again, because the third value (without linebreak) is not found in the dropdown list.

Can you please fix this bug?

Kind regards,
Lucas