Ranging over string of int gives wrong output

[gandharvas]

What version of Go are you using (go version)?

$ go version
go1.14.6

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
Windows

What did you do?

https://play.golang.org/p/1RVQkIi61nI

What did you expect to see?

1 2 3 4

What did you see instead?

49 50 51 52

[gandharvas]

Can I work on this issue and fix?

[ianlancetaylor]

This is correct behavior. The string is Unicode, and the Unicode value for 1 is decimal 49 (https://www.codetable.net/decimal/49).

Compare to https://play.golang.org/p/vOaWa9sdw0e.

Closing because this is not a bug.