Questions like this highlight the need to emphasize I am NOT an expert. In particular, I cannot offer anything about this particular aspect of the process.
I pay close attention to a lot of detailed information about some relatively particular issues, regarding which I make a concerted effort to stay informed and carefully analyze. So I can and often do offer in-depth observations about matters related to such issues.
Sorry I cannot offer more.
I can suggest you take the time and make the effort to telephone the call centre and ask about this. Unfortunately there are scores of inconsiderate others bogging down IRCC's resources, calling to ask questions like "it's been ten minutes and eCas does not show my application In Process, why is it taking so long . . . ? " So it could take a concerted effort to get through and make your query; be polite but persist in getting the call agent to actually access your records, to verify the name, or explain how it works. Good luck.