Strange behaviour with -u option

[herb]

Hello Phil,

I work on a Windows 10 system with Exiftool 12.42.
My C++ application starts Exiftool with -stay_open option.

For the following sequence of tasks
   exiftool.exe -a -g0:1 -u -validate -All:all   testfile
   exiftool.exe -a -g0:1     -validate -All:all   testfile

both commands show the unknown tags.
This is only in case of -validate is used.

For me it looks like an error, because -u seems to be NOT reset.

Thanks for help in advance
Best regardss
herb

[StarGeek]

Phil is currently away from the net, so it'll be a few days before he can look at this.

[Phil Harvey]

Interesting, yes.

This is a bit tricky because ExifTool uses the Unknown option to generate permanent entries for unknown tags in the internal tag tables.  The Verbose option also does this for some tags.  But the Unknown option is also used to extract some pre-defined but seldom-used tags.

ExifTool should have been suppressing the generated tags from the Validate output, but I wanted to include the seldom-used tags, which is the reason for this problem.

I'll patch ExifTool 12.43 to fix this behaviour with respect to the Apple tags and the Validate option.  There may be other cases that need to be patched like this but I don't have time to do a full audit right now.

- Phil

[herb]

Hello Phil,

thanks for the correction in version 12.43

Best regards
herb