fix: early return for empty segments (CM-1136) (#4069)

Signed-off-by: Umberto Sgueglia <usgueglia@contractor.linuxfoundation.org>

Author: ulemons

backend/src/database/repositories/memberRepository.ts

@@ -291,6 +291,17 @@ class MemberRepository {
       await new SegmentRepository(options).getSegmentSubprojects(currentSegments)
     ).map((s) => s.id)
 
+    if (segmentIds.length === 0) {
+      return args.countOnly
+        ? { count: '0' }
+        : {
+            rows: [{ members: [], similarity: 0 }],
+            count: 0,
+            limit: args.limit,
+            offset: args.offset,
+          }
+    }
+
     let similarityFilter = ''
     const similarityConditions = []
 

backend/src/database/repositories/segmentRepository.ts

@@ -296,6 +296,8 @@ class SegmentRepository extends RepositoryBase<
   }
 
   async getSegmentSubprojects(segments: string[]) {
+    if (segments.length === 0) return []
+
     const transaction = this.transaction
 
     const records = await this.options.database.sequelize.query(