basis.app: fix exception when no element and init returns nothing
basis.app: fix exception when no element and init returns nothing

tyanas/basisjs,istrel/basisjs,fateevv/basisjs,istrel/basisjs,smelukov/basisjs,fateevv/basisjs,basisjs/basisjs,fateevv/basisjs,istrel/basisjs,tyanas/basisjs,smelukov/basisjs,basisjs/basisjs,smelukov/basisjs,basisjs/basisjs,tyanas/basisjs