From IP-8 (the manual CIC officers use to refer to when processing in Canada spousal sponsorship applications; link: http://www.cic.gc.ca/englisH/resources/manuals/ip/ip08-eng.pdf Pg 13)
"
5.4 When does an application exist?
An application in the spouse or common-law partner in Canada class requires receipt by the CPC-M of a properly completed and signed Application to Sponsor, Sponsorship Agreement and Undertaking [IMM 1344E], a properly completed and signed Generic Application Form for Canada [IMM 0008E] including the Schedule A Background/Declaration [IMM 5669E] and proof of payment of the correct processing fees. Under the spousal policy, H&C applications with a spousal connection will be considered applications in the spouse or common-law partner in Canada class after the receipt of a sponsorship, if not already submitted.
For further information see:
- Sponsorship application and minimum requirements, IP 2, Section 5.12; and
- Minimum requirements for applications, IP 2, Section 5.13.
" (References information from IP-2: http://www.cic.gc.ca/english/resources/manuals/ip/ip02-eng.pdf )
So, in theory, provided you send the list above, and provided that you send the PCC original into CIC between the time that you receive AOR, and the time that they actually start processing the application, it shouldn't slow your application down, and it should not be returned.