[release/9.0-staging] Exit the lock before we call into user code and handle losing the race for the RCW table (#111162)

Co-authored-by: Sergio Pedri <sergio0694@live.com>
Co-authored-by: Jeremy Koritzinsky <jekoritz@microsoft.com>
Co-authored-by: Jeremy Koritzinsky <jkoritzinsky@gmail.com>

Author: 3 people