It adds the keys from the master version as well. In 8.4 we added some more keys to CUVc in the master version so your 2 extra keys brought it over the limit of 80. I have increased the limit to 200. This will be available in 8.4 2017-09-13.
Hi, Paul.
Sounds like you're talking about REST API. And that your are overwriting data with older values if B managed to read record before A finished to update it. Classic conflict resolution ...
