I talked to IRCC agent and they said no issue.. see below: (V1 just allow to reenter, without SP/WP it let you enter for 6 month and with WP in hand let you enter till expirey of WP) note: you need to apply new permit when wp or sp expire or even need to apply even if u want to change to visitor status inside canada. nutshell: they are offering this as a new way of entry! but permit let you study or work!
Difference between a Temporary Resident Visa (TRV) and a Status Document after arrival in Canada
Entry and
stay in Canada are two different things and the validity of each is determined by different documents.
Entry - Visa (TRV)
A TRV allows
entry into Canada. It is valid for a limited period of time. You must therefore come to Canada and present yourself at a port of entry
up until the expiry date on your TRV.
Please note that a valid TRV
does not guarantee entry into Canada. If your situation has changed between the date you applied for your TRV and the date you arrived in Canada, an officer will decide if you still meet the requirements to enter the country.
Stay - Stamp or Status Document
Once entered, the duration of your
stay will not be determined by the validity of your TRV but by either a stamp in your passport or a status document such as a work permit or a study permit. In the absence of any of those, unless there is a date written by hand on the stamp in your passport, you are deemed to have been authorized a stay of 6 months.
Re-entry
While you are in Canada, your TRV may expire. This has no effect on the validity and duration of your
stay. However, if you plan on leaving and returning to Canada, you are required to obtain a new TRV. As an
exception, you do not have to obtain a new TRV if you are returning to Canada after travelling
only to the United States* and/or St.Pierre and Miquelon by the end of the period initially authorized for your stay or any extension to it.
*Including its Territories and Possessions, but not cruises entering international waters.