Fix unknown command on empty lines (#16867)
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@ -415,7 +415,7 @@ void GCodeQueue::get_serial_commands() {
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if (serial_char == '\n' || serial_char == '\r') {
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process_line_done(serial_input_state[i], serial_line_buffer[i], serial_count[i]);
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if (process_line_done(serial_input_state[i], serial_line_buffer[i], serial_count[i])) continue;
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char* command = serial_line_buffer[i];
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@ -550,7 +550,7 @@ void GCodeQueue::get_serial_commands() {
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else if (n < 0)
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SERIAL_ERROR_MSG(MSG_SD_ERR_READ);
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process_line_done(sd_input_state, command_buffer[index_w], sd_count);
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if (process_line_done(sd_input_state, command_buffer[index_w], sd_count)) continue;
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_commit_command(false);
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