Fixing some comments

lib/model/query/entities.js

@@ -212,6 +212,7 @@ const _getHeldSubmissionsAsEvents = () => ({ all }) => all(sql`
   ORDER BY "branchId", "branchBaseVersion"`)
   .then(map(construct(Audit)));
 
+// Used to de-queue a held submission when it is force-processed.
 const _deleteHeldSubmissionByEventId = (eventId) => ({ run }) => run(sql`
   DELETE FROM entity_submission_backlog
   WHERE "auditId"=${eventId}`);
@@ -258,14 +259,13 @@ const _computeBaseVersion = (eventId, dataset, clientEntity, submissionDef, forc
 
     if (!baseEntityVersion.isDefined()) {
       if (forceOutOfOrderProcessing) {
-        // if the base version doesn't exist but we forcing the update anyway,
-        // use the latest version on the server as the base.
-        // TODO: if that can't be found, maybe we're in the magic apply update as create case.
+        // If the base version doesn't exist but we forcing the update anyway, use the latest version on the server as the base.
+        // If that can't be found, throw an error for _processSubmissionEvent to catch so it can try create instead of update.
         const latestEntity = await Entities.getById(dataset.id, clientEntity.uuid)
           .then(getOrReject(Problem.user.entityNotFound({ entityUuid: clientEntity.uuid, datasetName: dataset.name })));
         return latestEntity.aux.currentVersion;
       } else {
-        // In this case, we are not ready to process this submission and it will be held in the backlog.
+        // If there is no base version and we are not forcing the processing, hold submission in the backlog.
         await Entities._holdSubmission(eventId, submissionDef.submissionId, submissionDef.id, clientEntity.def.branchId, clientEntity.def.baseVersion);
         return null;
       }