Are pins BOOT0 and PORT_A Bit 8 (PA8) connected?

If I read port A, I noticed that bit 8 (PA8) is high when the BOOT0 button is pressed, low when released.

I can’t see on the schematic that they’re connected, and no documentation I’ve read suggests this is the case.

Does anyone here know why this is happening?

Update: I just checked with a meter, and there is continuity between PA8 and the BOOT0 button.

Since it’s not documented, Sipeed - can we depend on this? Can we have the updated schematic?

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