Good morning,
this was reported as https://bugs.debian.org/1126259 by Daniel Haryo Sugondo against gpgsm 2.4.7:
The following situation occurs:
$ gpgsm --list-chain --with-validation
...
Do you ultimately trust
"CN=HARICA Client RSA Root CA 2021 O=Hellenic Academic and Research Institutions CA C=GR"
to correctly certify user certificates?
Yes Cancel No
[ycn]? y
Please verify that the certificate identified as:
"CN=HARICA Client RSA Root CA 2021 O=Hellenic Academic and Research Institutions CA C=GR"
has the fingerprint:
46:C6:90:0A:77:3A:B6:BC:F4:65:AD:AC:FC:E3:F7:07:00:6E:DE:6E Correct Cancel Wrong
[ccw]? c
...
There are 2 identical [c], I'm not sure if this intended as correct or
cancel. With pinentry-curses you can choose by moving your marking, but on
pinentry-tty it's not possible.
Edit the file .gnupg/trustlist.txt by hand resolves the problem, but it's not
the point, to use gpgsm.