Mark cherry-pick change as WIP if cherry-pick resulted in conflicts

Marking the target change as work-in-progress makes it more obvious to
users that conflicts need to be resolved before the change can be
submitted.

Change-Id: I585f75050d49151db6a685b6dc75119b44826c9d
Signed-off-by: Edwin Kempin <ekempin@google.com>
diff --git a/Documentation/rest-api-changes.txt b/Documentation/rest-api-changes.txt
index a340163..1829c6b 100644
--- a/Documentation/rest-api-changes.txt
+++ b/Documentation/rest-api-changes.txt
@@ -5969,7 +5969,8 @@
 Callers can find out if there were conflicts by checking the
 `contains_git_conflicts` field in the link:#cherry-pick-change-info[
 CherryPickChangeInfo] that is returned by the cherry-pick REST
-endpoints.
+endpoints. If there are conflicts the cherry-pick change is marked as
+work-in-progress.
 |===========================
 
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