Certify a user id. Abort the pinentry. You get:
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The (): is the result of Formatting::formatForComboBox(d->key()) which has just been changed to Formatting::formatForComboBox(target) to fix T6154: Kleopatra: Assert in CertifyCertificateCommand after setting ownertrust of key. I think this issue here is just another symptom of the same bug as in T6154: Kleopatra: Assert in CertifyCertificateCommand after setting ownertrust of key. You were just quick enough to avoid the assert.