Setting empty string to props doesn't change the content

[arifmahmudrana]

You can see in this screen shot I have set html props value & it showing correctly

Now when I change the html props value to empty string the props value is changing but the content of div isn't changing.

I have tried with v-model but not working also in the repo example I added a button & programmatically to set data msg to empty string that doesn't work either. Props changing but content of div not changing.