Facts about constitution: Comoros, as discussed in Comoros: Year In Review 2009:

...impact on the political future of the country. On May 17 Comorans voted in a controversial referendum to modify the framework of the power-sharing government that had been in place since 2001. The constitutional change pared down the governmental structure; federal presidents became governors of the semiautonomous Grande Comore, Anjouan, and Moheli islands, and the term of the union presidency...