The chair of the Glasgow School of Art has accused MSPs of a “jaw-dropping” failure to interrogate the building contractor that was responsible for the Mackintosh building when it was gutted by a second fire in June 2018. The GSA released a detailed rebuttal on Friday to a critical report published by the Scottish parliament’s culture committee in March, which called for a judicial inquiry into the two fires and accused the school of failing to protect the 110-year-old listed…