why are revision hashes different between "osc log" vs OBS?

English Open Build Service (OBS)
#1

When I see a revision hash in OBS, for instance “93f6a927a5c0a69e4f9ceb30b562af15” here for revision “1” :

https://build.opensuse.org/package/view_file/home:castedo:java/tomee-webprofile/_service?expand=1&rev=93f6a927a5c0a69e4f9ceb30b562af15

it is different than the hash I see when I run “osc log | tail” from the command line:
…
r1 | castedo | 2013-11-19 20:17:53 | 8b5b14163b225001ded016eccae21dc3 | unknown |
…

osc --version
0.142

Are these hashes supposed to be the same thing? If not, how can I see the hash that appears on OBS from the osc tool? The hash on OBS seems to be the one inside the baserev XML attribute inside _link files.