Tags S and Š

[Colics]

I've made tags with initial letters ...
So i have two tags "S" and "Š" (slug "s" and "s-2").
When I try to add the tag "Š" in the post, after I save the post WP, I tag "S" instead of "Š"?
Is this a mistake or how can I fix my problem by adding the tag I want?

The same problem is with letters

• C, Č and Ć
• Z and Ž

[audrasjb]

using post tag "Š" in the editor

[audrasjb]

the saved tag is not "Š" but "S"

[audrasjb]

Hello @Colics and welcome to WordPress Trac,

Thanks for the ticket. I can confirm the issue on my side.

[audrasjb]

The issue is not related to the Block Editor though. Same issue appears using Classic Editor as well.

[Colics]

The same problem is with:

• "C" and "Ć" and "Č"
• "Z" and "Ž"

[SergeyBiryukov]

Previously: #33731, #33864.

[audrasjb]

@Colics the issue appears to be fixed on my side using current trunk. Maybe a recent change also fixed the issue.
Can you confirm it @SergeyBiryukov ?

[Colics]

the problem has not been resolved :(

[sabernhardt]

#51593 was marked as a duplicate.

[Colics]

Solution
in file wp-includes/taxonomy.php
function term_exists( $term, $taxonomy = , $parent = null ) {
...
change line
$orderby = 'ORDER BY t.term_id ASC';
with line
$orderby = 'ORDER BY CASE WHEN hex(t.name) = hex(%s) THEN 0 ELSE 1 END, t.term_id ASC';

How does this work?
If he finds 100% equal, return it to the first one, if not then still according to the second criterion, ie. t.term_id ASC

[Presskopp]

Related: #53682