fix(uniapp): preserve empty string values in Radio and Checkbox - #4607

luffy0x wants to merge 1 commit into

fix(uniapp): preserve empty string values in Radio and Checkbox#4607
luffy0x wants to merge 1 commit into
Tencent:developfrom
luffy0x:fix/issue-4604-empty-value

fix(uniapp): preserve string prop values