[Bug]: v3.9.1 client fails to sync shared folders with greek (possibly other utf-8) characters

[hadjilucasL]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Desktop: Windows 11

Was on client 3.9.0, received a share with a folder containing a subfolder with a greek name, e.g. Δημοσιεύσεις. Worked fine. Could see all folders.

Upgraded to client 3.9.1, received another share with subfolders with greek names. This time subfolders with greek names failed to sync to desktop. Folders were visible online. There was no warning/indication that there was an error on the client side.

Server running: Nextcloud Hub 5 (27.0.1)

Steps to reproduce

• Install desktop client 3.9.1, server 27.0.1

• Share a folder containing subfolders with a greek name (possibly other utf8 characters?)

• Person receiving the share sees all subfolders except the ones with greek names

• Re-install client 3.9.0. Unshare and re-share. Subfolders with greek names make appearance again.

Expected behavior

All subfolders (inc the ones with purely foreign characters) should be visible in the share. Unsharing and sharing again with v3.9.0 client provides expected behavior.

Which files are affected by this bug

Δημοσιεύσεις

Operating system

Windows

Which version of the operating system you are running.

Windows 11

Package

Other

Nextcloud Server version

27.0.1

Nextcloud Desktop Client version

3.9.1

Is this bug present after an update or on a fresh install?

Updated from a minor version (ex. 3.4.2 to 3.4.4)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

Can provide debug logs if needed.

[PhilippSchlesinger]

There is a PR #5884 that seems related to the issue you describe.

[hadjilucasL]

Thanks! It does seem this might be the issue.. although I am not sure why shares were working ok in v3.9.0 🤔

[cedvan]

Same for me, since upgrading to 3.9.1. Some files are no longer synchronized.

My music files by artist "Ayọ" are ignored because of the specific o.
All files with an "X-X" in their name are ignored ("In-Between.flac", "Hors-Saison.flac", etc...)

[PhilippSchlesinger]

There are very similar bugs #5935 and #5938

[cedvan]

Solution proposed in #5935 solve my problem :D

[cedvan]

Ops, not all good :/

• Files by artist "Ayọ" are ignored because of the specific o. -> solved
• Files with an "X-X" in their name are ignored ("In-Between.flac", "Hors-Saison.flac", etc...) -> always ignored

[hadjilucasL]

As per #5935, tested with version 3.9.2 and the issue has now been fixed. So will close this issue. Many thanks to @allexzander for fixing this 👍 !