set FileManagerMode flag when calling urlsFromMimeData
The new flag, when seeing the application/x-kde-cutselection marker in urlsFromMimeData (regardless of its value), will not use XDG Document Portal to get the source urls. That marker is set by Dolphin in all copy/cut/drag operations.
This avoids the problem that XDG Document Portal always resolves symlinks to targets.
Depends on kcoreaddons!364 Related: system/dolphin!586 (closed)
Edited by Jin Liu