Using Time Adjust tool in Batch Queue Editor, the option to update [File last modified] has no effect if the global setting for [Metadata > Update file timestamp when files are modified] is not checked. I would expect this explicit option in the Time Adjust tool to override the global setting.
Git commit 56965e851589fd18a2d56bf0d264ba885b4187c5 by Maik Qualmann. Committed on 27/01/2017 at 21:03. Pushed by mqualmann into branch 'master'. ignore metadata settings for the BQM time adjust tool FIXED-IN: 5.5.0 M +2 -1 NEWS M +2 -2 utilities/imageeditor/core/fileoperation.cpp M +1 -1 utilities/imageeditor/core/fileoperation.h M +9 -5 utilities/queuemanager/manager/task.cpp https://commits.kde.org/digikam/56965e851589fd18a2d56bf0d264ba885b4187c5