Naomi Blumenthal was convicted of bribery and was sentenced to a few months in jail. She appealed to the president for clemency because of her personal situation (her husband died etc.) and the President agreed and canceled her jail term. The organization for good government petitioned the Supreme Court to cancel the clemency.
The law (a Basic law) specifically gives the President the power to grant clemency with no reservations. In other words, there is no absolutely no room for the court's intervention. The law give the President the power of clemency with no reservations. The fact that the court even agreed to hear the case is a travesty.
Bill Clinton before he left office pardoned a whole bunch of people including Marc Rich. There was a lot of criticism but no one would have dreamed of appealing to the Supreme Court and if someone would have they would have been throw it. There is simply no legal issue. The President has the absolute right to pardon who he wants, the same thing applies in Israel. The fact that the court is even hearing the case highlights the judicial tyranny of the Supreme Court in Israel.