Content-Disposition: attachment; filename*=UTF-8''1.mp4
curl -JLO "SomeURL" ignores sent filename in headers.

This option is documented in RFC https://tools.ietf.org/html/rfc6266#page-7

curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP UnixSockets

OS: ubuntu 18.0 x64