Housing and Planning Bill

I am not qualified to take part in these legal technicalities but this is clearly something that needs sorting out. If the Government are going to stop people buying a starter home and letting it during the five-year period, will they also be prevented from keeping it empty? For example, if I bought a starter home worth £250,000, having received a discount of £50,000, and with two years to go I unavoidably had to move somewhere else and could not live in that house, it would be altogether financially more beneficial to me to simply leave it empty for two years and pay the council tax on it than to sell it and lose the £50,000. What will the position be in that situation?