[rules-users] concurrent modification of a rule by more than one user in Guvnor

Hi All, I am currently testing 5.2.0.CR1 version of Guvnor. Can multiple users modify a rule in Guvnor at the same time? what are the issues involved in say, two users trying to change 1. the same row in a decision Table at the same time and saving it. 2. different rows in a decision table at the same time and saving it. Are there any documentation or articles to get more information on concurrent access within Guvnor? Thank You, ram.