Before this change any commit in your web feed had a duplicated commit
title. Old example:

FooBar committed REPOFOO 132abc: add documentation (authored by FooBar)
add documentation

After this change the commit title "add documentation" is repeated only once.

Before	After

So the web feed is slimmer and less distracting, more space for more useful info.

Having a NULL body seems OK. In fact, the upstream caller already skips
body rendering in that case:

https://we.phorge.it/source/phorge/browse/master/src/applications/transactions/feed/PhabricatorApplicationTransactionFeedStory.php;0fe0b9f681d0da79b313e0907933665930074704$157-160

P.S.

If you think it would be nice to show a second line in the body web feed,
we think so too! Look at the mentioned task and please propose that feature.
This is just an early UX fix to avoid to repeat the same info twice.

Closes T15489

Before this change, look at your web feeds about commits and reproduce
the original problem.

Apply this change and restart phd and do some commits and appreciate
that you do not see anymore duplicated commit titles in each commit feed.

Your email notifications are unchanged.