With a few brief exceptions, Confederate Reserves followed the law under which they were created. That means assignments within the borders of their home state. Anyone who has questions about a reserve unit like this would need to determine if it was a junior or senior reserve organization. Senior reserves were either given individual details or assigned to rear area duties, such as guarding prisoners of war. Junior reserves could be given front-line assignments.
As for consolidation, state troops were state troops and Confederate troops...well, you get the idea. It's like mixing oil and water. I'm unaware of any consolidation of reserve units such as we see in Confederate armies towards the war's end. In any case, Georgia state and Confederate reserve units would not have been merged.