issue with time stamp image created with digikam editor

[leoutation at gmx.fr]

Hi
Here is the problem:
I crop image "A" to get new/different image "B".  I see this
new/different image "B" keeps same original image "A" time stamp even
though "B" is a new/different image. Time stamp should be new image
creation date, not old original image.
Is it a bug or a feature?
Conditions:
digikam git version
external mysql db
xmp metadata
digikam settings:
- Metadata -> behavior -> only "image tags" checked
- Sidecars  -> write to sidecar file
                -> write to item and XMP sidecars

--
Maderios