Bug in USB implementation in STM32CubeH7

Hello.

I have found a bug in USB implementation in STM32CubeH7 (1.4.0 - 1.6.0). Steps to reproduce:

1) Open the project from STM32H743I-EVAL\Applications\USB_Device\MSC_Standalone\MDK-ARM directory

3) Build the project and download it to STM32H743I-EVAL board

4) Wait for STM driver letter to appear

5) Copy a file with approx size 20MB to STM drive

6) Start copying above file from STM drive

7) In the middle of copying unplug the USB cable

8) Plug USB cable back

9) From this time USB is not recognized by the operating system anymore

The issue is not present in STM32CubeH7 1.3.2

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