Quartus Convert Partial Reconfiguration Programming Files

I am attempting to replicate the example provided on the Altera Wiki for partial reconfiguration. I compile using the provided .tcl file, and the only modification I make is to add a quartus.ini file with the line pgmio_write_pr_text_file=mif This is per the instruction in the compile script. After compilation, I notice that the generated .mif files are much larger (4511272 words vs. 336326 words) than the ones provided with the demo project. Since the ROM is 650000 words wide, these .mif are truncated by quartus.

I have tried using quartus version 12.1 and 13.1 and get the same result.