$ git clone -n https://github.com/xcp-ng-rpms/mellanox-mlnxen.git /var/lib/mock/v7.99-base-826-337/root/chroot_tmpdir/scmroot/mellanox-mlnxen
Cloning into '/var/lib/mock/v7.99-base-826-337/root/chroot_tmpdir/scmroot/mellanox-mlnxen'...
$ git reset --hard 8c4299ef8ae61bf677e23ea6ddfbd4ca2f740927
Downloading SOURCES/mellanox-mlnxen-3.4.tar.gz (601 KB)
HEAD is now at 8c4299e Add BuildRequires: gcc