This is another effort to narrow the material that can be withheld. It says the head “shall not...refuse to disclose a record if that record contains”, and we would add:
details of a contract or bid for a contract with a government institution.
There has been a lot of case law suggesting this part of the bill has been abused over the years. This is an effort to provide an ability to get the public's hands on the details of contracts or bids on contracts to make it clear that they're available, notwithstanding the general exception to the rule.