Anyone heard of this?

I was looking at getting a 2nd on my house (quite a bit of equity) and was told by someone my primary lender may have a clause in there where they can call my note if I take on a 2nd loan or home equity line of credit. My primary lender is a big entity so it might take some jumping through hoops to check on this but in the meantime while I do, is this a common thing in lending?

I've never seen that call language in my lender's paperwork. The first lien lender will want in writing they maintain that first position but that's it.