League leaders Saint-Etienne wasted a two-goal lead and missed out on a fourth straight win after drawing 2-2 at Nantes.
In Tuesday's match, Guoan were up by three goals before the interval, with goals from Yu Yang, Jonathan Viera and Fernando Lucas Martins.
The pay-tv stations covering the game, Sky and DZAN, announced they would not be sending reporters to Budapest but instead would commentate on the game from Germany.
Leipzig, however, responded straight away and pressed Mainz on the back foot to restore their two-goal lead three minutes later as Haidara made no mistake to tap home Forsberg's square pass.
The tournament, which was originally scheduled for June, was pushed back due to the COVID-19 pandemic and served as the second major played this year. Enditem
Everything changed after the break with Son latching onto another Kane through ball in the 47th minute to put his side ahead, before adding two more in the 64th and 74th minutes.
Bach reiterated that the sports world needs to "work diligently and comprehensively" to take the right decisions because nobody can predict what will happen in the next 10 months.
But these are just one-quarter of over 200 simplification measures to be talked about and more challenges are lying ahead of the IOC and Olympics organizers.
Despite a positive start, Wolfsburg failed to build on their momentum and focused on long-range efforts, which posed no threat for Desna goalkeeper Yehven Past in the remainder of the first half.
The second half seemed to end in a draw, especially when both sides nearly ran out of stamina with more mistakes. Thanks to defender Ding Haifeng's accurate pass, Markao made a final hit for the Hebei side with a powerful header in the 91st minute. Enditem
Wuhan once had a good chance to pull one back in the 43rd minute when midfielder Liu Yun sent an accurate cross in the penalty area, but forward Dong Xuesheng failed to touch the ball.