file encoding changed from UTF-8 to UTF8-with-BOM

[polocco]

When i try to change an existing file with only UTF-8 encoding, after one or more changes, when i save the file that convert it with UTF8-with-BOM enconding. I tried to search for settings related to this topic, but I didn't find anything.
What can I do?
proc0020_cf_standalone_install.md

[carloBarazzetta]

Thank you for your information, I'll investigate the problem, as soon as possible...