Playback from Samba share fails if user's password contains @ symbol (reopen)

I'm reopening #22151 (closed) which supposed to be solved in #24637 (closed) because in version 3.0.17.4 (Manjaro/KDE) it is still exists. I can confirm it because I changed my password in the linux samba server (debian) not to contain the @ character and afterwards everything was ok. The behavior that it is described in #22151 (closed) regarding error message and kdewallet are exactly the same. So it doesn't seems that has been solved.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information