Search after invalid chars

[jk411]

echo 61 61 b6 62 62 0a | xxd -p -r >file
vis file

Search
"/b"
doesn't work,
characters after invalid char 0xb6 can't be found if cursor is before it

Last version of vis
compiled from sources
on Alpine Linux (musl)

[Randy Palamar]

duplicate of #1064

[Matěj Cepl]

duplicate of #1064

So, why is this ticket not closed?