Default template function argument

With reference to the following code:

#include <iostream>
#include <variant>
#include <limits>

using namespace std;

template < bool bitwise = false, typename T>
// template <typename T,  bool bitwise = false>  
// ^ wont work! error: no matching function for call to 'func<true>(int, int)'

bool func(T a, T b) {
    if constexpr(bitwise) {
        return a & b;
    }
    else {
        return a && b;
    }
}
int main()
{
    cout << func(7,1) << endl;
    cout << func<true>(7,1) << endl;
}

Why do I have to specify the argument bitwise first in the template list ? Compiler can deduce T from the function arg so why does bitwise need to be the first one in this case?

Wandbox: https://wandbox.org/permlink/xtB2jhmNfBh7IoJz