Vectorcan QCanBusDevice::framesReceived is emitted when tx receipts are received

The QCanBusDevice::framesReceived signal is received when transmitting a can signal. This might be a feature but I did not find it documented so in my opinion it is a bug since I cannot distinguish what frames are received (real rx frames or tx receipts)...

Vector documentation provides the following function for controlling what is received and the default values: xlCanSetChannelMode - "This function specifies whether the caller will get a Tx and/or a TxRq receipt for transmitted messages (for CAN channels defined by accessMask). The default is TxRq deactivated and Tx activated."

File: vectorcanbackend.cpp
Function: void VectorCanBackendPrivate::startRead()
Proposed solution: check if this is a tx receipt and in case it is ignore-it:

const s_xl_can_msg &msg = event.tagData.msg;
if (msg.flags & XL_CAN_MSG_FLAG_TX_COMPLETED)
continue;