Will re-scanning loose my channel remapping?

[ChrisGUK]

My TV told me to re-scan to get new channels so I would like to do this with NextPVR but I have spent a long time remapping the channels to the correct numbers (as used in the UK).
Will rescanning loose the remapping that I did and if it does is there a way for me to either preserve them or re-apply them afterwards?

[OTAjunkie]

nah, scan away!

And don't take orders from your TV.

[ChrisGUK]

Thanks.
Just a couple of encrypted channels!
Mapping was not changed