About Transport request

Hi experts,

Currently we have Dev(A) , QA(B) and production(C) system. when I did some changes for one datasource and move the TR1 from A to B. Then I did some changes for the same datasource in A again and included in TR2. The question is when I move the TR1 to production system, whether TR1 will include the changes of TR2.

Regarding the TR, does it just include the latest status of one object?