/usr/include/KF5/MailCommon/FolderTreeWidgetProxyModel is in libkf5mailcommon-dev 4:16.04.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | #include "mailcommon/foldertreewidgetproxymodel.h"
|