warning C4789: in function 'void __cdecl store_compressed_length() buffer 'buf' of size 4 bytes will be overrun; 8 bytes will be written starting at offset 1

This warning appears when compiling server on Windows with -DCMAKE_INTERPROCEDURAL_OPTIMIZATION. With link-time optimization, compiler knows that the stack buffer maybe too small for some inputs (it is only 4 bytes, while maximal buffer size, for sizes > 16M is 9 bytes)