fix: [events:eventTimeline] Correctly restore elements after changing context or group
fix: [events:eventTimeline] Correctly restore elements after changing context or group

- Fix #6885

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