fix: [export] Fixed broken bro export, fixes #4050
fix: [export] Fixed broken bro export, fixes #4050

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