Public bug reported:

Using the following code I cant move the window with mvwin
============================================================
#include <ncurses.h>
#include <stdlib.h>

void quit();

int main(int argc, char** argv) {
  initscr();
  atexit(quit);
  curs_set(0);
  noecho();

  WINDOW *win = newwin(0,0,0,0); // <-- Defference
  mvwin(win,10,10);
  wresize(win,10,10);

  refresh();
  box(win,0,0);
  wrefresh(win);
  getch();

  return 0;
}

void quit() {
  endwin();
}
============================================================


Changing the window start coordinates to 1,1 and it works.
============================================================
#include <ncurses.h>
#include <stdlib.h>

void quit();

int main(int argc, char** argv) {
  initscr();
  atexit(quit);
  curs_set(0);
  noecho();

  WINDOW *win = newwin(1,1,0,0); // <-- Defference
  mvwin(win,10,10);
  wresize(win,10,10);

  refresh();
  box(win,0,0);
  wrefresh(win);
  getch();

  return 0;
}

void quit() {
  endwin();
}

** Affects: ncurses (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1783162

Title:
  mvwin doesn't work if window is created with zero coordinates.

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