[FIX] base_external_referentials: external key field in import fix
[FIX] base_external_referentials: external key field in import fix


acsone/connector,gurneyalex/connector,maljac/connector,MindAndGo/connector,dvitme/connector,brain-tec/connector,guewen/connector,open-synergy/connector,js-landoo/connector,esousy/connector,BT-jmichaud/connector,anybox/connector,brain-tec/connector,mohamedhagag/connector,js-landoo/connector,guewen/connector,acsone/connector,BT-ojossen/connector,Endika/connector,hugosantosred/connector,maljac/connector,zhaohuaw/connector,sylvain-garancher/connector,BT-fgarbely/connector,gurneyalex/connector,brain-tec/connector,Endika/connector,Antiun/connector,open-synergy/connector,hugosantosred/connector,MindAndGo/connector,fevxie/connector,esousy/connector,BT-ojossen/connector,Antiun/connector,fevxie/connector,zhaohuaw/connector,anybox/connector,sylvain-garancher/connector,mohamedhagag/connector,BT-fgarbely/connector,acsone/connector,dvitme/connector,BT-jmichaud/connector