An interesting point, because at our place it happens virtually every day.
We're outside controlled airspace, but have tightly regulated agreements with an adjecent airfield as to whose traffic can do what depending on the runway in use at our and their bases.
This probably gives us (and perhaps the piolts?) a greater degree of flexibility than most airports inside CAS.
We give the traffic information to the Tcas equipped aeroplane on the known traffic and keep them updated, and I've yet to see any of them take any tcas originated action.
This is with both UK, European and non European operators of aircraft of all shapes and size.
It would be interesting to know from the pilots perspective though.