There might be a difference. The current 150 million is not a rescue package, it is a loan that has to be repaid before any other creditor will see any money. It is not issued from the government, just secured from it. There was no prior financial help from the government at all. Which i believe is quite different to the Malev case.
The aim is to assure that the company can continue operating until it is sold off in pieces, which is expected in a few weeks. Original debt holders (mainly the unmentionable airline) will probably see less than a penny per dollar of their investment, if they do see anything at all.