perminlink generation with special charaters in post title leads to redirect error

[horst8831]

Wordpress generates the permlink from the post title. If the title contains special characters it leads to a invalid url for the post.

I think for better usability, wordpress should not generate invalid post urls at all.
Sure I can easy fix that problem by manually change the generated link. But there are pages like mine with many posts and authors every day.
So it leads steadily to problems and support request by members/authors.

Example
Title of the new post is:
Testpost

generated permlink is:
​https://mywpblog/2016/12/11/testpost-%f0%9f%98%9b/

--> redirect error by opening that post

[horst8831]

the example post title did contain a emoticon
bute the eidito here seems to remove such things.
Such a behaviour for the title before you generate the permlink would solve the problem :)

[johnbillion]

Thanks for the report @horst8831. This has been reported already at #38966.