$ git clone -n https://src.fedoraproject.org/rpms/libgit2_1.6.git /var/lib/mock/f41-build-side-1-3129736-39584/root/chroot_tmpdir/scmroot/libgit2_1.6
Cloning into '/var/lib/mock/f41-build-side-1-3129736-39584/root/chroot_tmpdir/scmroot/libgit2_1.6'...
$ git fetch origin c5b57edf943eb196ce70aa4df7dd852342c9ea25:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/libgit2_1.6.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443 
$ git reset --hard c5b57edf943eb196ce70aa4df7dd852342c9ea25
HEAD is now at c5b57ed Retire unused compat package