vfs_catia doesn't copy stat info when synthesizing smb filenames, so for VFS modules stacked behind catia stat metadata of the original file is not available.
Created attachment 15294 [details] Patch for 4.9 and 4.10 cherry-picked from master
Re-assigning to Karolin for inclusion in 4.9.next, 4.10.next.
(In reply to Jeremy Allison from comment #3) Pushed to autobuild-v4-{10,9}-test.
(In reply to Karolin Seeger from comment #4) Pushed to both branches. Closing out bug report. Thanks!
*** Bug 13682 has been marked as a duplicate of this bug. ***