look at this:
https://www.avast.com/faq.php?article=AVKB21#idt_20

https://static.avast.com/support/kb/images/v2017/avkb21/en/scan_ok.png

that sample is safe( no virus)!
but avast talking about how to restore that file(safe file )when that file dont need restore ,its on his place!!
this Descriptions mean: when a safe file added to virus chest avast should block it and delete it from original place! (cuz avast talking about how to retore a safe file to original place)!!!when this rule dont work in ur avast antivrus

they wanted avast antivrus block that file and must do it(cuz avast talking about how restore a safe file)
but in real world ;D in ur pc cant do it and dont work with this rule :))