Issue when cdap image tag contains string

[baeksangha]

cdap-operator/controllers/version_update.go

Line 393 in 21cf8d0

return nil, fmt.Errorf("failed to parse image string %s, unable to convert string to int", imageString)

I'm wonder why cdap only allows integer in the image tag.
Is it any reason for this?

Is is OK when I change this logic to allow string in the image tag?

Thank you :)