Removed ‘duplicated’ implementation by allowing nil selector
Removed ‘duplicated’ implementation by allowing nil selector

ReSwift/ReSwift,mpsnp/ReSwift,Swift-Flow/Swift-Flow,Swift-Flow/Swift-Flow,mpsnp/ReSwift,ReSwift/ReactiveReSwift,Swift-Flow/Swift-Flow,ycfreeman/ReSwift,ReSwift/ReSwift,ReSwift/ReactiveReSwift,ReSwift/ReactiveReSwift,Swift-Flow/Swift-Flow,ycfreeman/ReSwift,Swift-Flow/Swift-Flow,ycfreeman/ReSwift,mpsnp/ReSwift,ReSwift/ReSwift,ycfreeman/ReSwift,ycfreeman/ReSwift