I have given a look at that bug and made a fix - the bug is in GTK+3 (or maybe it's done on purpose, I hope not.)
The documentation on gtk_file_chooser_set_local_only() still says
"On some systems non-native files may still be available using the native filesystem via a userspace filesystem (FUSE)."
But the code stopped doing that.
The patch I sent to upstream (https://bugzilla.gnome.org/show_bug.cgi?id=787128) fixes it.
I have given a look at that bug and made a fix - the bug is in GTK+3 (or maybe it's done on purpose, I hope not.)
The documentation on gtk_file_ chooser_ set_local_ only() still says
"On some systems non-native files may still be available using the native filesystem via a userspace filesystem (FUSE)."
But the code stopped doing that.
The patch I sent to upstream (https:/ /bugzilla. gnome.org/ show_bug. cgi?id= 787128) fixes it.