Northern Ireland boss Nigel Worthington gave O'Connor a second half run out with the Irish leading 3-0 at half-time.
20-year-old Connor who has been in fine for the Railwaymen came on for Birmingham City midfielder Damien Johnson at the start of the second half.
O'Connor had a nightmare of a start as he handled a cross in the 55th minute to give the ref no option but to give a penalty to the Georgians.
Although the penalty was pushed onto the post by Maik Taylor the rebound was put in by David Healy as he tried to clear.