Two tag_editor_qt tests compared editor_directory() — the parent() of a
file inside std::env::temp_dir() — against temp_dir() itself. On Windows
temp_dir() ends in a separator ("C:\...\Temp\") and Path::parent never
yields one, so the strings differ and the Windows Qt gate failed on every
run since 2026-08-28, the v2.1.0 tag push included. Linux never saw it.
Both tests now use a created subdirectory of temp, which normalises the
two sides on every platform.
cc
vicrodh
e99a5e0fa1