Maybe, given the potential asset overlap between SQ42 and SC, this would significantly lower the value of the securities , er, securing the loan, hence making the whole thing very low risk for CIG, supporting their position this is business as usual and no big deal.
On the other hand, if the bank doesn’t realise this and CIG pulled one over them with this clause, I would anticipate some intense good faith legal scrutiny in the event of default.
I reckon it’s the former, though.