patch 8.1.1695: Windows 10: crash when cursor is at bottom of terminal

Problem:    Windows 10: crash when cursor is at bottom of terminal.
Solution:   Position the cursor before resizing. (Yasuhiro Matsumoto,
            closes #4679)

src/os_win32.c

@@ -3738,6 +3738,7 @@ ResizeConBufAndWindow(
     CONSOLE_SCREEN_BUFFER_INFO csbi;	/* hold current console buffer info */
     SMALL_RECT	    srWindowRect;	/* hold the new console size */
     COORD	    coordScreen;
+    COORD	    cursor;
     static int	    resized = FALSE;
 
 #ifdef MCH_WRITE_DUMP
@@ -3792,6 +3793,11 @@ ResizeConBufAndWindow(
     }
     else
     {
+	// Workaround for a Windows 10 bug
+	cursor.X = srWindowRect.Left;
+	cursor.Y = srWindowRect.Top;
+	SetConsoleCursorPosition(hConsole, cursor);
+
 	ResizeConBuf(hConsole, coordScreen);
 	ResizeWindow(hConsole, srWindowRect);
 	resized = TRUE;