/**
 * uint8_return_ptr:
 * Returns: (transfer none):
 */
guint8 *uint8_return_ptr (void);

gives

<function name="uint8_return_ptr" c:identifier="uint8_return_ptr">
  <return-value transfer-ownership="none">
    <array c:type="guint8*">
      <type name="uint8"/>
    </array>
  </return-value>
</function>

I'd expect it to be scanned as a simple pointer, not as an array. For any other type (i.e. int8, (u)int, (u)int16, 32, etc.), it works as expected.