[search] Fix crash with empty tokens and empty prefix. Closed #665.
[search] Fix crash with empty tokens and empty prefix. Closed #665.

darina/omim,gardster/omim,felipebetancur/omim,kw217/omim,mgsergio/omim,Saicheg/omim,AlexanderMatveenko/omim,matsprea/omim,vasilenkomike/omim,VladiMihaylenko/omim,mpimenov/omim,ygorshenin/omim,rokuz/omim,ygorshenin/omim,andrewshadura/omim,alexzatsepin/omim,guard163/omim,Transtech/omim,stangls/omim,goblinr/omim,yunikkk/omim,vng/omim,mpimenov/omim,Endika/omim,edl00k/omim,vasilenkomike/omim,krasin/omim,victorbriz/omim,guard163/omim,mapsme/omim,stangls/omim,kw217/omim,edl00k/omim,yunikkk/omim,matsprea/omim,Transtech/omim,milchakov/omim,Volcanoscar/omim,vasilenkomike/omim,kw217/omim,wersoo/omim,syershov/omim,trashkalmar/omim,augmify/omim,krasin/omim,Transtech/omim,krasin/omim,victorbriz/omim,andrewshadura/omim,albertshift/omim,AlexanderMatveenko/omim,AlexanderMatveenko/omim,edl00k/omim,vasilenkomike/omim,TimurTarasenko/omim,rokuz/omim,guard163/omim,andrewshadura/omim,AlexanderMatveenko/omim,TimurTarasenko/omim,vng/omim,therearesomewhocallmetim/omim,bykoianko/omim,stangls/omim,Zverik/omim,stangls/omim,AlexanderMatveenko/omim,wersoo/omim,yunikkk/omim,trashkalmar/omim,syershov/omim,guard163/omim,Komzpa/omim,vladon/omim,trashkalmar/omim,AlexanderMatveenko/omim,felipebetancur/omim,bykoianko/omim,therearesomewhocallmetim/omim,bykoianko/omim,edl00k/omim,darina/omim,sidorov-panda/omim,Volcanoscar/omim,jam891/omim,dobriy-eeh/omim,Transtech/omim,therearesomewhocallmetim/omim,jam891/omim,dobriy-eeh/omim,ygorshenin/omim,programming086/omim,programming086/omim,augmify/omim,bykoianko/omim,felipebetancur/omim,UdjinM6/omim,VladiMihaylenko/omim,vng/omim,krasin/omim,gardster/omim,darina/omim,Zverik/omim,syershov/omim,Volcanoscar/omim,yunikkk/omim,darina/omim,Endika/omim,wersoo/omim,UdjinM6/omim,jam891/omim,goblinr/omim,ygorshenin/omim,wersoo/omim,edl00k/omim,matsprea/omim,dobriy-eeh/omim,dobriy-eeh/omim,Volcanoscar/omim,stangls/omim,mpimenov/omim,mapsme/omim,milchakov/omim,Endika/omim,igrechuhin/omim,mpimenov/omim,stangls/omim,edl00k/omim,igrechuhin/omim,lydonchandra/omim,kw217/omim,jam891/omim,augmify/omim,albertshift/omim,dkorolev/omim,sidorov-panda/omim,krasin/omim,mapsme/omim,UdjinM6/omim,simon247/omim,andrewshadura/omim,alexzatsepin/omim,darina/omim,edl00k/omim,mapsme/omim,goblinr/omim,Transtech/omim,trashkalmar/omim,sidorov-panda/omim,UdjinM6/omim,goblinr/omim,igrechuhin/omim,programming086/omim,mpimenov/omim,igrechuhin/omim,dobriy-eeh/omim,mgsergio/omim,gardster/omim,stangls/omim,vladon/omim,simon247/omim,albertshift/omim,kw217/omim,simon247/omim,programming086/omim,programming086/omim,gardster/omim,65apps/omim,lydonchandra/omim,Endika/omim,mpimenov/omim,bykoianko/omim,guard163/omim,sidorov-panda/omim,mgsergio/omim,TimurTarasenko/omim,albertshift/omim,VladiMihaylenko/omim,alexzatsepin/omim,vasilenkomike/omim,syershov/omim,andrewshadura/omim,65apps/omim,rokuz/omim,darina/omim,krasin/omim,Komzpa/omim,therearesomewhocallmetim/omim,milchakov/omim,darina/omim,Zverik/omim,darina/omim,dkorolev/omim,mgsergio/omim,Endika/omim,mpimenov/omim,lydonchandra/omim,alexzatsepin/omim,guard163/omim,AlexanderMatveenko/omim,guard163/omim,TimurTarasenko/omim,vng/omim,ygorshenin/omim,Saicheg/omim,dkorolev/omim,mgsergio/omim,ygorshenin/omim,goblinr/omim,Saicheg/omim,mapsme/omim,augmify/omim,mpimenov/omim,vladon/omim,TimurTarasenko/omim,syershov/omim,65apps/omim,trashkalmar/omim,therearesomewhocallmetim/omim,augmify/omim,VladiMihaylenko/omim,goblinr/omim,ygorshenin/omim,Zverik/omim,alexzatsepin/omim,kw217/omim,lydonchandra/omim,mgsergio/omim,dkorolev/omim,Saicheg/omim,simon247/omim,Zverik/omim,yunikkk/omim,yunikkk/omim,lydonchandra/omim,wersoo/omim,gardster/omim,Saicheg/omim,65apps/omim,milchakov/omim,65apps/omim,matsprea/omim,mpimenov/omim,albertshift/omim,victorbriz/omim,bykoianko/omim,Komzpa/omim,victorbriz/omim,igrechuhin/omim,yunikkk/omim,Saicheg/omim,matsprea/omim,Komzpa/omim,matsprea/omim,bykoianko/omim,andrewshadura/omim,Endika/omim,TimurTarasenko/omim,igrechuhin/omim,vasilenkomike/omim,wersoo/omim,syershov/omim,felipebetancur/omim,dkorolev/omim,rokuz/omim,mgsergio/omim,Transtech/omim,mapsme/omim,wersoo/omim,programming086/omim,kw217/omim,bykoianko/omim,goblinr/omim,jam891/omim,Transtech/omim,milchakov/omim,Transtech/omim,kw217/omim,victorbriz/omim,jam891/omim,Zverik/omim,rokuz/omim,Komzpa/omim,kw217/omim,darina/omim,darina/omim,alexzatsepin/omim,simon247/omim,UdjinM6/omim,milchakov/omim,matsprea/omim,milchakov/omim,alexzatsepin/omim,jam891/omim,Volcanoscar/omim,alexzatsepin/omim,felipebetancur/omim,vng/omim,stangls/omim,Transtech/omim,bykoianko/omim,goblinr/omim,felipebetancur/omim,yunikkk/omim,Saicheg/omim,simon247/omim,syershov/omim,vladon/omim,Endika/omim,VladiMihaylenko/omim,syershov/omim,simon247/omim,igrechuhin/omim,bykoianko/omim,felipebetancur/omim,syershov/omim,programming086/omim,mgsergio/omim,rokuz/omim,Saicheg/omim,mgsergio/omim,dobriy-eeh/omim,TimurTarasenko/omim,simon247/omim,krasin/omim,sidorov-panda/omim,goblinr/omim,syershov/omim,UdjinM6/omim,albertshift/omim,vladon/omim,simon247/omim,felipebetancur/omim,AlexanderMatveenko/omim,yunikkk/omim,albertshift/omim,dobriy-eeh/omim,dobriy-eeh/omim,UdjinM6/omim,andrewshadura/omim,lydonchandra/omim,Zverik/omim,dkorolev/omim,gardster/omim,vasilenkomike/omim,igrechuhin/omim,gardster/omim,stangls/omim,ygorshenin/omim,programming086/omim,VladiMihaylenko/omim,matsprea/omim,trashkalmar/omim,sidorov-panda/omim,dkorolev/omim,TimurTarasenko/omim,edl00k/omim,rokuz/omim,albertshift/omim,mapsme/omim,rokuz/omim,mapsme/omim,Zverik/omim,mapsme/omim,mgsergio/omim,guard163/omim,vng/omim,VladiMihaylenko/omim,jam891/omim,trashkalmar/omim,felipebetancur/omim,syershov/omim,jam891/omim,milchakov/omim,wersoo/omim,darina/omim,alexzatsepin/omim,VladiMihaylenko/omim,UdjinM6/omim,vasilenkomike/omim,dobriy-eeh/omim,edl00k/omim,goblinr/omim,andrewshadura/omim,dobriy-eeh/omim,gardster/omim,Volcanoscar/omim,milchakov/omim,mpimenov/omim,Zverik/omim,Transtech/omim,rokuz/omim,mgsergio/omim,therearesomewhocallmetim/omim,matsprea/omim,trashkalmar/omim,dkorolev/omim,VladiMihaylenko/omim,ygorshenin/omim,vladon/omim,VladiMihaylenko/omim,dkorolev/omim,lydonchandra/omim,Transtech/omim,syershov/omim,goblinr/omim,jam891/omim,rokuz/omim,UdjinM6/omim,rokuz/omim,Volcanoscar/omim,stangls/omim,65apps/omim,Volcanoscar/omim,alexzatsepin/omim,igrechuhin/omim,milchakov/omim,ygorshenin/omim,mgsergio/omim,65apps/omim,Komzpa/omim,krasin/omim,kw217/omim,trashkalmar/omim,AlexanderMatveenko/omim,wersoo/omim,milchakov/omim,sidorov-panda/omim,milchakov/omim,trashkalmar/omim,krasin/omim,lydonchandra/omim,andrewshadura/omim,gardster/omim,victorbriz/omim,rokuz/omim,mpimenov/omim,albertshift/omim,augmify/omim,Komzpa/omim,vng/omim,Endika/omim,Volcanoscar/omim,albertshift/omim,yunikkk/omim,augmify/omim,goblinr/omim,therearesomewhocallmetim/omim,Endika/omim,dkorolev/omim,ygorshenin/omim,Zverik/omim,VladiMihaylenko/omim,gardster/omim,vasilenkomike/omim,darina/omim,andrewshadura/omim,bykoianko/omim,bykoianko/omim,vng/omim,therearesomewhocallmetim/omim,vng/omim,65apps/omim,victorbriz/omim,milchakov/omim,vladon/omim,edl00k/omim,vladon/omim,mapsme/omim,Zverik/omim,guard163/omim,programming086/omim,dobriy-eeh/omim,dobriy-eeh/omim,sidorov-panda/omim,alexzatsepin/omim,Transtech/omim,programming086/omim,sidorov-panda/omim,65apps/omim,wersoo/omim,yunikkk/omim,vladon/omim,trashkalmar/omim,Komzpa/omim,vasilenkomike/omim,krasin/omim,simon247/omim,victorbriz/omim,dobriy-eeh/omim,UdjinM6/omim,victorbriz/omim,TimurTarasenko/omim,lydonchandra/omim,Saicheg/omim,darina/omim,Komzpa/omim,65apps/omim,guard163/omim,mpimenov/omim,Volcanoscar/omim,rokuz/omim,augmify/omim,VladiMihaylenko/omim,lydonchandra/omim,therearesomewhocallmetim/omim,65apps/omim,trashkalmar/omim,mapsme/omim,matsprea/omim,vng/omim,mapsme/omim,stangls/omim,Komzpa/omim,victorbriz/omim,bykoianko/omim,sidorov-panda/omim,Zverik/omim,augmify/omim,ygorshenin/omim,alexzatsepin/omim,mpimenov/omim,alexzatsepin/omim,igrechuhin/omim,goblinr/omim,Zverik/omim,vladon/omim,syershov/omim,felipebetancur/omim,AlexanderMatveenko/omim,VladiMihaylenko/omim,Endika/omim,augmify/omim,TimurTarasenko/omim,therearesomewhocallmetim/omim,mapsme/omim,Saicheg/omim