always reset the filemodel when the tree changes
otherwise we might be missing changes deeper inside the tree (i.e. changes other than the root node)
(cherry picked from commit 45a86c11)
0b504bc0 always reset the filemodel when the tree changes 4bb45bf8 Apply 1 suggestion(s) to 1 file(s)
Co-authored-by: Harald Sitter sitter@kde.org