MAP REUSE

[SubMishMar]

Hi, I am trying to use the map save and load services provided in this package and I have one question in mind. Currently, I am running a bag file and when the robot is done exploring an area I am storing the map as a ".pcd" file. Then I am killing the node to do a second run by loading the saved map.
Now, when I run the same bag file I get expected results, i.e. the robot is able to localize in the saved map. I also saw that the mapping process is switched off by default when a saved map is loaded(ofcourse it can be switched on by using the set mode service).
But when I run a different bag file which contains data collect from the same environment but with the robot with a different initial configuration, the localization fails, i.e. the odometry published by mapper is completely wrong.
The question is, can I reuse a map saved with a particular initial robot pose in another scenario where there is significant map overlap but the initial pose of the robot is different?