IBX-8426: Fixed duplicate relations #1984

Job	Run time
Unit tests & SQLite integration tests (7.4)	7m 3s
Unit tests & SQLite integration tests (8.0)	7m 4s
Run code style check (8.0)	2m 31s
Solr integration tests (7.4)	10m 41s
Unit tests & SQLite integration tests (8.1)	7m 8s
Solr integration tests (8.0)	10m 37s
Solr integration tests (8.1)	10m 41s
PostgreSQL integration tests (7.4)	23m 51s
PostgreSQL integration tests (8.0)	25m 57s
MySQL integration tests (7.4)	13m 21s
PostgreSQL integration tests (8.1)	22m 39s
MySQL integration tests (8.0)	13m 14s
MySQL integration tests (8.1)	13m 12s
	2h 47m 59s

Provide feedback