My wife an I live in Australia and own our main residential house here. We also own a small property in Europe which is not rented out but is lived in by an elderly relative.
If we move to Europe at one point to care for our elderly relative we would wish to keep our Australian property as our 'main residence' in case we return at some point in the future however the European country specifies that if you own and live in a property in that country it is automatically classified as your 'main residence'. If the European country specifies the European property as our 'main residence' does this cancel out our Australian property from being our 'main residence'?