$ git clone -n https://src.fedoraproject.org/rpms/boost1.78.git /var/lib/mock/f41-build-side-1-3106468-39376/root/chroot_tmpdir/scmroot/boost1.78
Cloning into '/var/lib/mock/f41-build-side-1-3106468-39376/root/chroot_tmpdir/scmroot/boost1.78'...
$ git fetch origin cab47dd4552646f816a7726d1f9669f68d60b68a:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/boost1.78.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443 
$ git reset --hard cab47dd4552646f816a7726d1f9669f68d60b68a
HEAD is now at cab47dd Added the README