Zcash4win creates a t-address on its own


I’m running Zcash4Win version 1.0.12. When I first started the wallet, there appeared a new t-address except the ones that I previously created via the Linux zcash-cli and daemon.

Now, I did a small test and ran the Windows version of zcashd and zcash-cli with a clean .zcash datadir. After first start, there is again a new t-address:
c:\Program Files\zcash4win\app>zcash-cli getaddressesbyaccount “”

Is this an expected behaviour? I would prefer to start clean and generate addresses on my own.