return empty array when search is empty
return empty array when search is empty

javierbitpay/copay,tanojaja/copay,msalcala11/copay,hideoussquid/aur-copay,bitchk-wallet/copay,tanojaja/copay,fr34k8/copay,JDonadio/copay,bitchk-wallet/copay,matiu/copay,msalcala11/copay,troggy/colu-copay-wallet,hideoussquid/aur-copay,ObsidianCryptoVault/copay,Groestlcoin/GroestlPay,troggy/unicoisa,bitjson/copay,Kirvx/copay,ajp8164/copay,JDonadio/copay,cobit-wallet/cobit,cmgustavo/copay,dabura667/copay,troggy/colu-copay-wallet,matiu/copay,tanojaja/copay,urv2/wallet,troggy/colu-copay-wallet,matiu/copay,gabrielbazan7/copay,dabura667/copay,troggy/unicoisa,tanojaja/copay,ObsidianCryptoVault/copay,Groestlcoin/GroestlPay,cobit-wallet/cobit,Kirvx/copay,cobit-wallet/cobit,Kirvx/copay,hideoussquid/aur-copay,JDonadio/copay,cmgustavo/copay,mpolci/copay,janko33bd/copay,gabrielbazan7/copay,Bitcoin-com/Wallet,troggy/unicoisa,urv2/wallet,fr34k8/copay,fr34k8/copay,javierbitpay/copay,cmgustavo/copay,matiu/copay,Bitcoin-com/Wallet,Bitcoin-com/Wallet,urv2/wallet,mpolci/copay,Kirvx/copay,troggy/unicoisa,bitjson/copay,JDonadio/copay,msalcala11/copay,janko33bd/copay,janko33bd/copay,mpolci/copay,fr34k8/copay,javierbitpay/copay,ajp8164/copay,bitjson/copay,gabrielbazan7/copay,Groestlcoin/GroestlPay,cmgustavo/copay,troggy/colu-copay-wallet,gabrielbazan7/copay,ajp8164/copay,bitchk-wallet/copay,bitjson/copay,hideoussquid/aur-copay,msalcala11/copay,Groestlcoin/GroestlPay,dabura667/copay,ObsidianCryptoVault/copay,urv2/wallet,Bitcoin-com/Wallet,mpolci/copay,ObsidianCryptoVault/copay,javierbitpay/copay