textbox can't delete the last word

[Binbiubiubiu]

Version

2.7.0

Information about environment

browser

Steps to reproduce

new fabric.Textbox('some text', {
        width:100,
        height:30,
        splitByGrapheme: true
 })

Expected Behavior

As a matter of fact, textbox was deleted along with the last text.

Actual Behavior

Textbox cannot delete the last word

I looked at the latest code and found that if textbox deleted the last word, the text would not disappear, the actual text had been deleted, but textbox still displayed the last word.

[asturur]

this bug is bad and needs to be fixed before of 3.0 release

[asturur]

ok fixed!