[FIX] website_sale: check email address
[FIX] website_sale: check email address

Partial backport of ef19830. The error message cannot be included for
compatibility reason, but the browser will highlight the field in red,
which should be enough to locate the error.

opw-677121

Elico-Corp/odoo_OCB,CatsAndDogsbvba/odoo,synconics/odoo,leorochael/odoo,Noviat/odoo,funkring/fdoo,vnsofthe/odoo,Noviat/odoo,Adel-Magebinary/odoo,tvibliani/odoo,Nowheresly/odoo,eino-makitalo/odoo,funkring/fdoo,storm-computers/odoo,odootr/odoo,diagramsoftware/odoo,makinacorpus/odoo,mustafat/odoo-1,diagramsoftware/odoo,ehirt/odoo,spadae22/odoo,dfang/odoo,funkring/fdoo,ygol/odoo,spadae22/odoo,tvibliani/odoo,dfang/odoo,Adel-Magebinary/odoo,jfpla/odoo,storm-computers/odoo,vnsofthe/odoo,odootr/odoo,tvibliani/odoo,ygol/odoo,spadae22/odoo,Adel-Magebinary/odoo,hassoon3/odoo,jfpla/odoo,hip-odoo/odoo,mustafat/odoo-1,datenbetrieb/odoo,ehirt/odoo,storm-computers/odoo,eino-makitalo/odoo,microcom/odoo,makinacorpus/odoo,jfpla/odoo,dfang/odoo,Daniel-CA/odoo,Daniel-CA/odoo,shingonoide/odoo,NeovaHealth/odoo,diagramsoftware/odoo,makinacorpus/odoo,hassoon3/odoo,vnsofthe/odoo,NeovaHealth/odoo,Daniel-CA/odoo,NeovaHealth/odoo,eino-makitalo/odoo,Nowheresly/odoo,laslabs/odoo,Daniel-CA/odoo,alexcuellar/odoo,ehirt/odoo,dfang/odoo,microcom/odoo,ygol/odoo,Noviat/odoo,synconics/odoo,Noviat/odoo,BT-ojossen/odoo,datenbetrieb/odoo,datenbetrieb/odoo,microcom/odoo,OpenUpgrade/OpenUpgrade,diagramsoftware/odoo,Noviat/odoo,Endika/odoo,bplancher/odoo,leorochael/odoo,mustafat/odoo-1,OpenUpgrade/OpenUpgrade,Endika/odoo,spadae22/odoo,eino-makitalo/odoo,BT-ojossen/odoo,vnsofthe/odoo,spadae22/odoo,hip-odoo/odoo,odootr/odoo,ehirt/odoo,Adel-Magebinary/odoo,Endika/odoo,synconics/odoo,OpenUpgrade/OpenUpgrade,jfpla/odoo,BT-ojossen/odoo,shingonoide/odoo,leorochael/odoo,jfpla/odoo,eino-makitalo/odoo,Noviat/odoo,glovebx/odoo,datenbetrieb/odoo,BT-ojossen/odoo,vnsofthe/odoo,microcom/odoo,Nowheresly/odoo,datenbetrieb/odoo,spadae22/odoo,shingonoide/odoo,Endika/odoo,leorochael/odoo,Daniel-CA/odoo,odootr/odoo,tvibliani/odoo,hassoon3/odoo,Elico-Corp/odoo_OCB,microcom/odoo,bplancher/odoo,shingonoide/odoo,BT-ojossen/odoo,shingonoide/odoo,alexcuellar/odoo,diagramsoftware/odoo,Elico-Corp/odoo_OCB,mustafat/odoo-1,Nowheresly/odoo,synconics/odoo,Noviat/odoo,jfpla/odoo,CatsAndDogsbvba/odoo,glovebx/odoo,odootr/odoo,ygol/odoo,storm-computers/odoo,alexcuellar/odoo,odootr/odoo,ehirt/odoo,NeovaHealth/odoo,laslabs/odoo,Daniel-CA/odoo,makinacorpus/odoo,CatsAndDogsbvba/odoo,NeovaHealth/odoo,makinacorpus/odoo,funkring/fdoo,ygol/odoo,hip-odoo/odoo,diagramsoftware/odoo,Endika/odoo,glovebx/odoo,Nowheresly/odoo,tvibliani/odoo,bplancher/odoo,Endika/odoo,synconics/odoo,microcom/odoo,laslabs/odoo,mustafat/odoo-1,diagramsoftware/odoo,laslabs/odoo,makinacorpus/odoo,Daniel-CA/odoo,glovebx/odoo,OpenUpgrade/OpenUpgrade,tvibliani/odoo,Elico-Corp/odoo_OCB,laslabs/odoo,BT-ojossen/odoo,leorochael/odoo,bplancher/odoo,glovebx/odoo,Adel-Magebinary/odoo,makinacorpus/odoo,funkring/fdoo,eino-makitalo/odoo,OpenUpgrade/OpenUpgrade,ehirt/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,bplancher/odoo,vnsofthe/odoo,OpenUpgrade/OpenUpgrade,ehirt/odoo,hassoon3/odoo,shingonoide/odoo,datenbetrieb/odoo,leorochael/odoo,CatsAndDogsbvba/odoo,NeovaHealth/odoo,bplancher/odoo,hassoon3/odoo,mustafat/odoo-1,ygol/odoo,Elico-Corp/odoo_OCB,CatsAndDogsbvba/odoo,datenbetrieb/odoo,Endika/odoo,ygol/odoo,leorochael/odoo,NeovaHealth/odoo,Nowheresly/odoo,hip-odoo/odoo,shingonoide/odoo,synconics/odoo,CatsAndDogsbvba/odoo,eino-makitalo/odoo,hassoon3/odoo,spadae22/odoo,vnsofthe/odoo,Nowheresly/odoo,funkring/fdoo,glovebx/odoo,dfang/odoo,dfang/odoo,glovebx/odoo,funkring/fdoo,synconics/odoo,odootr/odoo,storm-computers/odoo,laslabs/odoo,alexcuellar/odoo,hip-odoo/odoo,alexcuellar/odoo,hip-odoo/odoo,alexcuellar/odoo,tvibliani/odoo,Adel-Magebinary/odoo,BT-ojossen/odoo,Adel-Magebinary/odoo,alexcuellar/odoo,OpenUpgrade/OpenUpgrade,mustafat/odoo-1,jfpla/odoo,CatsAndDogsbvba/odoo