diff --git a/.github/workflows/pull-request-approved.yml b/.github/workflows/pull-request-approved.yml
index c68cc16b4..044c89e79 100644
--- a/.github/workflows/pull-request-approved.yml
+++ b/.github/workflows/pull-request-approved.yml
@@ -7,6 +7,7 @@ on:
 
 jobs:
   calculate-xetabase-branch:
+    if: github.event.review.state == 'approved'
     name: Calculate Xetabase branch
     runs-on: ubuntu-22.04
     outputs:
diff --git a/commons-datastore/commons-datastore-mongodb/src/main/java/org/opencb/commons/datastore/mongodb/MongoDBCollection.java b/commons-datastore/commons-datastore-mongodb/src/main/java/org/opencb/commons/datastore/mongodb/MongoDBCollection.java
index 8b26c9eb2..645cc98ef 100644
--- a/commons-datastore/commons-datastore-mongodb/src/main/java/org/opencb/commons/datastore/mongodb/MongoDBCollection.java
+++ b/commons-datastore/commons-datastore-mongodb/src/main/java/org/opencb/commons/datastore/mongodb/MongoDBCollection.java
@@ -322,13 +322,22 @@ public <T> List<DataResult<T>> privateFind(List<? extends Bson> queries, Bson pr
         return queryResultList;
     }
 
+    public DataResult<Document> aggregate(ClientSession clientSession, List<? extends Bson> operations,
+                                          QueryOptions options) {
+        return aggregate(clientSession, operations, null, options);
+    }
+
     public DataResult<Document> aggregate(List<? extends Bson> operations, QueryOptions options) {
         return aggregate(operations, null, options);
     }
 
     public <T> DataResult<T> aggregate(List<? extends Bson> operations, ComplexTypeConverter<T, Document> converter,
                                        QueryOptions options) {
+        return aggregate(null, operations, converter, options);
+    }
 
+    public <T> DataResult<T> aggregate(ClientSession clientSession, List<? extends Bson> operations,
+                                       ComplexTypeConverter<T, Document> converter, QueryOptions options) {
         long start = startQuery();
         DataResult<T> queryResult;
         List<T> list = new LinkedList<>();