Austria
The status of South Tyrol was a lingering problem between Austria and Italy until it was officially settled by the 1980s with a great degree of autonomy being granted to it by the Italian national government. Between 1918 and 1919, Austria was known as the State of German Austria (). Not only did the Entente powers forbid German Austria to unite with Germany, but they also rejected the name German Austria in the peace treaty to be signed; it was, therefore, changed to Republic of Austria in late 1919.
Federal Constitutional Law (Austrian act)
The question was resolved by November 11: the German Emperor had been ousted, Germany had declared itself a republic, the Austrian Emperor had abdicated. On November 12, the Assembly passed a proclamation establishing Austria as a republic, de facto sovereign for the time being but de jure part of Germany.
Since Austria was going to join Germany, promulgating a comprehensive new constitution was not a priority.