X11: toggle off perm_invent if the window is closed manually

doc/fixes5-0-1.txt

@@ -246,6 +246,7 @@ X11: improve TTY-style status line with text attributes for status hilites,
 	hitpointbar, some unicode support, 3-line status
 X11: fix menu windows being taller than the screen
 X11: allow menu scrolling by pageup/pagedown/home/end keys
+X11: toggle off perm_invent if user closes the perm inventory window
 
 
 General New Features

win/X11/winmenu.c

@@ -616,6 +616,8 @@ menu_popdown(struct xwindow *wp)
     wp->w = wp->popup = (Widget) 0;
     if (wp->menu_information->is_active)
         exit_x_event = TRUE;             /* exit our event handler */
+    if (wp->menu_information->permi)
+        iflags.perm_invent = FALSE;
     wp->menu_information->is_up = FALSE; /* menu is down */
 }