[Bug] Mouse Reports are sent twice if shared EP is enabled

[drashna]

Describe the Bug

If you use a tool like Spy++ on Windows, you can see it clearly, but when the shared EP stuff is enabled, the mouse reports are double sent. Which can be problematic for scrolling, for instance.

Disabling the shared endpoint fixes the issue outright, but on limited boards, that's not a good solution.

System Information

• Keyboard: ErgoDox EZ, Moonlander
• Operating system: Windows 10
• AVR GCC version: 8.4
• ARM GCC version: 8.3
• QMK Firmware version: 0.10.50
• Any keyboard related software installed?

[drashna]

when you have a chance, @abrasive any insights on this?