[_THISROW] in nested start expression

[Cathal_Noone]

If I have nested start expressions in a template, does the THISROW expression change to the the row selected in the start expression once it hasn’t reached the END expression or does it always refer to the row that triggered the template?
For example in the below, does the _THISROW in the second start expression refer to “ProjectDetails” row selected or the same row that the _THISROW in the first start statement points?

<<Start: Filter("ProjectDetails", [StartDate] > [_THISROW].[Date])>>
             ........
              
             <<Start: Filter("ProjectActivities", [ProjectID#] = [_THISROW].[Project Name])>>
                     ........
             <<End>>

 <<End>>