BUG FIXED! Type.forName Specific SObject List Summer '12 (25.0) Week of June 4th Patch Regression Bug

gistfile1.cls

//  Per Rich Unger should be fixed in Week of June 11th Patch - https://twitter.com/rich_unger/status/210844950722641920
System.assert(Type.forName('List<' + Account.SObjectType.getDescribe().getName() + '>').newInstance() instanceOf Account[]);

// Workaround (slightly less efficient)
static Map<String, SObject[]> listInstancesBySObjectNames = new Map<String, SObject[]>{};
static SObject[] newListInstance(SObjectType sObjectType) {
    if (!listInstancesBySObjectNames.containsKey(sObjectType.getDescribe().getName()))
        listInstancesBySObjectNames.put(sObjectType.getDescribe().getName(),
            Database.query('SELECT Id FROM ' + sObjectType.getDescribe().getName() + ' WHERE Id = null'));

    return listInstancesBySObjectNames.get(SObjectType.getDescribe().getName()).clone();
}