SAFE_POINT on exporting annotation

Issue is reproducible since 1.30 version.
Scenario:

1. Open genbank file with annotations, e.g. murine.gb
2. Remove NC_001363 sequence from the project
3. Select "NC_001363 features" annotation
4. Select Export/Import->Export annotations
5. Click OK in Export annotation dialog
6. Current state: SAFE_POINT is triggered

   Unexpected query result code: 19 (FOREIGN KEY constraint failed)
   SQL: error: SQLite: Error finalizing statement: Error querying database: FOREIGN KEY constraint failed in query: INSERT INTO ObjectRelation (object, reference, role) VALUES(?1, ?2, ?3)
   Trying to recover from error: Unexpected query result code: 19 (FOREIGN KEY constraint failed) at D:\ugene\ugene\src\corelibs\U2Core\src\models\GObject.cpp:197
   Assertion failed: 0, file D:\ugene\ugene\src\corelibs\U2Core\src\models\GObject.cpp, line 197