I mean..
BTC addressA = 0 BTC
BTH addressA = 0 BTH
I send 1 BTC addressA to BTH addressA...
You cannot send 1 BTC from addressA if addressA has not received any BTC yet.
Lets try this:
BTC address_BTC_A = 1 BTC
BTH address_BTH_A = 0 BTH
BTC address_BTH_B = 0 BTC
BTH address_BTH_B = 1 BTH
BTC address_BTC_C = 0 BTC
BTH address_BTH_C = 0 BTH
You send 1 BTC address_BTC_A to BTH address_BTH_C...
Result is:
BTC address_BTC_A = 0 BTC
BTH address_BTH_A = 0 BTH
BTC address_BTH_B = 0 BTC
BTH address_BTH_B = 1 BTH
BTC address_BTC_C = 1 BTC
BTH address_BTH_C = 0 BTH
It is not possible to send BTC to BTH wallet. It is not possible to send BTH to BTC wallet.
If you send BTC to BTH address...
Your BTC goes to that same address on the bitcoin network, NOT the BTH network.