$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f42-build-side-1-3585862-46908/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f42-build-side-1-3585862-46908/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin a414114aac7ca91dda964a6deafceb094faa8963:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/plasma-workspace.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443 
$ git reset --hard a414114aac7ca91dda964a6deafceb094faa8963
HEAD is now at a414114 6.4.2