Edit row drop-down box data name repeats only the first item

for example, a: happy New year, b: Hello, c: happy New year

when choosing"a: happy New year "the select value value will be a
when selecting" c: happy New year "the select value value will also be a

that is, as long as you choose "Happy New year", value is always a

ask for help on how to solve this problem, so that the selected name corresponds to the selected value