fix: [db_schema] Cerebrates's comment default value.
fix: [db_schema] Cerebrates's comment default value.

Fix #7200, fix #7137

SteveClement/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,MISP/MISP