[Plugins] - user-reminder force the nextSubState to be checked

NextSubState can indeed be empty and resolve into a php FATAL Error in case of non-existing key retrieved from main task.

changed milestone to %FusionDirectory 1.5

added PJ1802-0188 label

assigned to @tdockx

changed time estimate to 15m

added 15m of time spent

added Fixed plugin-user-reminder labels

created branch 6314-plugins-user-reminder-force-the-nextsubstate-to-be-checked to address this issue

closed