+---
+fixes:
+ - |
+ Retains the expected behaviour of Gerrit Trigger job configuration
+ for the comment-event-parameter-mode when a project upgrades their
+ JJB to 3.5.0 or newer.
+
+ In JJB 3.5.0 support was added to configure the
+ comment-event-parameter-mode however, while it's default mode in JJB
+ matches the documented help text for the configuration in Jenkins the
+ Gerrit Trigger plugin itself appears to default to PLAIN mode when
+ the parameter is excluded. This patch retains what we expect to be the
+ default behaviour.