inverted one wire mode with SoftwareSerial library doesn´t work with XIAO (SAMD21)

I´ve used following configuration:

#include

const byte rxPin = 0;
const byte txPin = 0;

// set up a new serial object
SoftwareSerial mySerial (rxPin, txPin, true);

but not signal on PIN 0 (with two different pin it works fine)

Start with the SoftwareSerial configuration shown in the issue and reproduce inverted one-wire mode on XIAO (SAMD21), comparing pin 0 with the two-pin setup that works. Trace the relevant serial behavior and verify that the corrected behavior produces a signal on pin 0.

Written by the indexing model from the issue text.