$ git clone -n https://src.fedoraproject.org/rpms/HepMC3.git /var/lib/mock/f39-build-2408256-60557/root/chroot_tmpdir/scmroot/HepMC3
Cloning into '/var/lib/mock/f39-build-2408256-60557/root/chroot_tmpdir/scmroot/HepMC3'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/HepMC3.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443