Conditional operator inconsistent type with operand swapped

[fuhsnn]

#include <stdio.h>
void main(int argc, char **argv) {
  void *p = 0;
  printf("%d\n", _Generic(argc ? p : "a", void*:1, char*:2 )); // expect 1, got 1
  printf("%d\n", _Generic(argc ? "a" : p, void*:1, char*:2 )); // expect 1, got 2

  printf("%d\n", sizeof(argc ? "a" : 0)); // expect 8, got 8
  printf("%d\n", sizeof(argc ? 0 : "a")); // expect 8, got 4
}