Try something like:
ifPrimary final tapKey space
holdKey ;
As @kareltucek already wrote, your macro commands will be executed in order. If you want to make a distinction between a primary function (short tap on key) and a secondary function (holding the key), you need to be explicit about this.
You will also need to set the criteria for the distinction, i.e. the time interval that differenciates between primary (tap) and secondary (hold) function.