[Bug Report] double {album_artist} or {artist} in custom folder structure with subfolder since est. v7.1.4

[Snapuman]

Problem

Since (I estimate) v7.1.4 there is a bug in creating a custom folder containing a subfolder:
I am using this exact same custom folder\subfolder structure since SpotiFLAC_v7.0.8, and it worked always like expecting, bug is new since a few versions (didn't find time to report until now).

My custom structure: {album_artist}\{album_artist} - {year} - {album}
-> also happens when using {artist} instead of {album_artist}
-> this happens as far as I tested generally with EVERY artist or album!

expected folder: "..\AlbumArtist\AlbumArtist - Year - Album"
resulting folder: "..\AlbumArtist\AlbumArtist _AlbumArtist - Year - Album" or
resulting folder: "..\AlbumArtist\AlbumArtist_AlbumArtist - Year - Album"
(depends on artist - maybe some have a space in tag, though I didn't find one)
-> notice the second _{album_artist} or " _{album_artist}" in subfolder, which is not in the structure!

example:
expected folder: "\Jolly\Jolly - 2013 - The Audio Guide to Happiness (Pt.I)"
resulting folder: "\Jolly\Jolly _Jolly - 2013 - The Audio Guide to Happiness (Pt.I)"

This is for selecting one or more whole albums as download.
If selecting just single tracks, behavior is little different (ignoring creating a subfolder), but contains the same doubling:

expected folder: "..\AlbumArtist\AlbumArtist - Year - Album"
resulting folder: "..\AlbumArtist _AlbumArtist - Year - Album" or
resulting folder: "..\AlbumArtist_AlbumArtist - Year - Album"

example:
expected folder: "..\Jolly\Jolly - 2012 - The Audio Guide to Happiness (Pt.I)"
resulting folder: "..\Jolly _Jolly - 2012 - The Audio Guide to Happiness (Pt.I)"

Type

Artist

Spotify URL

https://open.spotify.com/artist/6RJJF4CYd1o0EoMoK1Z9Ab

Additional Context

Settings:

Album Download

Single tracks download

SpotiFLAC Version

v7.1.6

OS

Windows 11 25H2

Location

Germany