Issue with search functionality in installed themes section

[nithi22]

If we navigate to Appearance > Themes and use the search box to check if a theme is already installed, it works as expected as we are entering the search term and don't press the enter key. In this instance, it will display "No themes found. Try a different search." However, if we enter the name of a theme that is not installed and press the enter key, the page will refresh and show the list of installed themes instead of displaying "No themes found. Try a different search.".

Environment

• WordPress: 6.6-RC2
• PHP: 8.2.0
• Server: Apache/2.4.54 (Unix) OpenSSL/1.0.2u PHP/8.2.0 mod_wsgi/3.5 Python/2.7.18 mod_fastcgi/mod_fastcgi-SNAP-0910052141 mod_perl/2.0.11 Perl/v5.30.1
• Database: mysqli (Server: 5.7.39 / Client: mysqlnd 8.2.0)
• Browser: Firefox 127.0 (macOS)
• Theme: Twenty Twenty-Four 1.1
• MU-Plugins: None activated
• Plugins:
  • WordPress Beta Tester 3.5.5

Steps to Reproduce

1. Navigate to Appearance > Themes.
2. Enter the name of a theme that is not installed in the search box.
3. Press the enter key.
4. Observe that the page refreshes and shows the list of installed themes instead of displaying the "No themes found. Try a different search" message.

Expected Results

1. When pressing the enter key after entering a search term for a theme that is not installed, it should display "No themes found. Try a different search."

Actual Results

1. When pressing the enter key after entering a search term for a theme then the page refreshes and shows the list of installed themes instead of the "No themes found. Try a different search" message.

[nithins53]

Attaching video for reference.

​https://www.loom.com/share/0c124a609b2c4e1985e5379691819579?sid=89894226-ffde-4f92-88b5-814216524ff8

[the ank]

Hi,

This bug exists in Playground. However, if we download 6.6-RC2 now, it does not show that bug anymore.

Edit- Yes I can see the bug when press Enter.

Ticket - https://core.trac.wordpress.org/ticket/61578

[monikarao]

#61601 was marked as a duplicate.

[joedolson]

Wish I'd seen this sooner; it could have made 6.6. At this point, however, I think it'll have to go into 6.6.1.

[hellofromTonya]

6.6.1 RC will likely happen late tomorrow, July 18th (no time is set yet). Discussed this ticket in today's scrub. As the patch isn't ready yet, will move this ticket to 6.6.2 (once that milestone is available in Trac).

All suggested changes are applied, thank you :)

This tests well for me on 6.6.1. Thanks for working on a fix!

Awesome, Thank you!

[sabernhardt]

#61788 was marked as a duplicate.

[josklever]

#61788 was closed as duplicate, although it described a different location where the bug appears (wp-admin/theme-install.php). That's for installing new themes. But it's probably the same issue.

I've applied the changes on wp-admin/js/theme.js (it's probably me, because I don't understand the paths in the PR, but I guess that's the one that needs the change), but that doesn't seem to work.

Via Playground I can't test this, because it's not possible to install new theme's so the search doesn't work there.

Can somebody please test the PR by going to Appearance - Themes - Install new theme and do a search there followed by pressing enter?