When displaying the summary for the review request, the code attempts to get the

summary from request.summary, which is null for draft reviews. In this

code change, we added a condition on where to get the summary - if the

draft exists, we get the draft summary; otherwise we get it from the

published review request.
The issue was fixed by the code change.

Reproduced issue in 4855, confirmed the summary for a draft review shows as expected after the code change

+--------+-----------------------------------------------------+---------------+
| Status |                   Review Request                    |    Branch     |
+========+=====================================================+===============+
| Draft  | r/11174 - fix 4855:rbtools 1.0.2 returns blank      | release-1.0.x |
|        | summary for draft review requests                   |               |
+--------+-----------------------------------------------------+---------------+


Ran the unit tests using ./tests/runtests.py, all passed.