We should create a new UniqueFieldTermEvent event that will be dispatched when the validation for terms has failed. We should pass the field name and submitted value to the event as arguments.
i.e., after adding a new error $form_state->setErrorByName()

Issue fork unique_field-3570257

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astonvictor created an issue. See original summary.

shubham_pareek_19 made their first commit to this issue’s fork.

shubham_pareek_19 opened merge request !30

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shubham_pareek_19 commented
Status: Active » Needs review
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boddy commented
Assigned: Unassigned » boddy
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boddy commented
Assigned: boddy » Unassigned
Status: Needs review » Reviewed & tested by the community

Created an additional field 'field_text', set Unique Field restrictions Term Name, Term Description, 'field_text' for Tags vocabulary.
Added the first Term, tried to add the second one with the same values for those fields.
Each time the UniqueFieldTermEvent event was dispatched successfully.

RTBC

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astonvictor commented
Status: Reviewed & tested by the community » Fixed

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Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.