Assertion failure in PDFsharp: "Should not come here" #152
Description
The attached simple C# code should create a copy of the attached PDF file, copying the pages one at a time into a new PDF. Instead, it produces an assertion failure ("Should not come here") in PdfCrossReferenceTable.TransitiveClosureImplementation, as shown in the screenshot.
The equivalent code works fine with every other PDF file I have tried.
