ArtworkOrObjectAOCircaDateCreated tag writable but unsafe

[Mac2]

Hi,

my software makes all tags either with writable=false or marked with unsafe as read-only.
I query this information via:

exiftool -f -t -l -listx -use MWG

The tag ArtworkOrObjectAOCircaDateCreated in the XMP::iptcExt group is one of the writable=true / unsafe cases.

I could not figure out why this is so and I have a bug report for making this writable.
Is this maybe a mistake in your tables or is there a reason?

[Phil Harvey]

From the revision history:

Jan. 12, 2018 - Version 10.75

  - Marked ArtworkCircaDateCreated as "unsafe" for writing to avoid it being
    added when attempting to shift all date/time tags

Unsafe tags are writable.  They just aren't written if specified with a wildcard (or 'all').

- Phil

[Mac2]

Ah, OK.
I then make them writable in my software as well. I write tags explicitly with tag=content so, no wildcards.

Thanks and have a nice weekend!