Revert "chg: [internal] Optimise fetching sightings for object"
Revert "chg: [internal] Optimise fetching sightings for object"

This reverts commit e442a394cd4ee7e3797151d8146992d4b1a2bee6.

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