Problem with field and input mask for phone?

Question

1C-Bitrix

Good evening.
If I place an order under an authorized user, I see the following:

All blocks are collapsed and the fields are automatically filled.
If for some reason the user wants to change something in his data, then by clicking on the "Change" button, I see:

And you can see that the number has been substituted starting from 7 (from 7 digits 11), because there is a mask in this field, only 10 digits fit, because of this, the last digit 2 is simply cut out.
After all I see:

Instead of [phone] I got [phone].
The client has automatic delivery of content via SMS on the number. I tried to cut this 7 at the beginning of the line through the OnSaleComponentOrderProperties event, but I realized that if the user does not want to change any data, then a number of this kind 937 986-48-92 is not suitable.
The task seems to be trivial, but even I have stalled on it, throw some ideas please.

Answer 1

It looks like normalizing a phone number, try setting the USE_PHONE_NORMALIZATION = N parameter in the component