Angular2 based Material Design components, directives and services are Accordion, Autocomplete, Collapse, Colorpicker, Datepicker, Dialog(Modal), Menu, Multiselect, Select, Tabs, Tags(Chips), Toast and Tooltip.
Because of above line it is not selecting option whose value is 0 or false. We might need to update option.value && this.equals(option.value, value) to option.value != null && option.value != undefined && this.equals(option.value, value)
https://github.com/Promact/md2/blob/4f4047751d980ce6a74acbf32cab1476a465afa7/src/lib/select/select.ts#L578
Because of above line it is not selecting option whose value is 0 or false. We might need to update
option.value && this.equals(option.value, value)
tooption.value != null && option.value != undefined && this.equals(option.value, value)