I will be flying WAW-IST on LOT and then connecting IST-TAS on either TK or HY (not 100% sure yet). Regardless of carrier, the connection in IST will be quite short at just about 2 hours with two separate tickets so it would be ideal to get the bags checked all the way through to TAS. As far as I can tell LO has interline agreements with TK and HY, but in practice will they actually thru check them? I've had bad experiences with other airlines when attempting to do this so I wanted to double check. If it matters I will be flying in Euro Business WAW-IST on an ANA award with 3 checked bags included/px.

Thanks!