Maybe you might be able to change some of the text in a hex editor. I just remembered as I clicked on reply that when I opened a wii iso in a hex editor the first 50 bytes contained readable text including the name of the game. If you changed this text (while keeping its length in bytes the same you may get dolphin to identify them as different games. At risk of sounding like GLaDOS or 343 Guilty Spark I think I am a genius.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
