publichPath in webpack-dev-server doesn't override publisPath in webpack (when it is empty)

[alexander-akait]

• Operating System: no matter
• Node Version: no matter
• NPM Version: no matter
• webpack Version: 4.29.0
• webpack-dev-server Version: 3.3.1

• This is a bug
• This is a modification request

Expected Behavior

Actual Behavior

Looks as bad DX, we need investigate how handle this case

For Bugs; How can we reproduce the behavior?

https://github.com/SetTrend/webpack-issue

For Features; What is the motivation and/or use-case for the feature?

[alexander-akait]

Close in favor #1385