Exception: UniqueViolation: duplicate key value violates unique constraint

[ghubz]

Hi,

Even though there is no visible error in Weblate's interface, the following error was logged in Sentry. I am adding it here in case it is useful to the maintainer to debug or fix:

UniqueViolation: duplicate key value violates unique constraint "trans_unit_translation_id_id_hash_ab945589_uniq"
DETAIL:  Key (translation_id, id_hash)=(208, 5792480980008714366) already exists.

  File "django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
IntegrityError: duplicate key value violates unique constraint "trans_unit_translation_id_id_hash_ab945589_uniq"
DETAIL:  Key (translation_id, id_hash)=(208, 5792480980008714366) already exists.

  File "weblate/trans/views/files.py", line 182, in upload_translation
    fuzzy=form.cleaned_data["fuzzy"],
  File "contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "weblate/trans/models/translation.py", line 1096, in merge_upload
    return self.handle_add_upload(request, store, fuzzy=fuzzy)
  File "weblate/trans/models/translation.py", line 1012, in handle_add_upload
    is_batch_update=True,
  File "contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "weblate/trans/models/translation.py", line 1252, in add_unit
    unit.save(force_insert=True)
  File "weblate/trans/models/unit.py", line 379, in save
    update_fields=update_fields,
  File "django/db/models/base.py", line 727, in save
    force_update=force_update, update_fields=update_fields)
  File "django/db/models/base.py", line 765, in save_base
    force_update, using, update_fields,
  File "django/db/models/base.py", line 868, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "django/db/models/base.py", line 908, in _do_insert
    using=using, raw=raw,
  File "django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "django/db/models/query.py", line 1270, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "django/db/models/sql/compiler.py", line 1410, in execute_sql
    cursor.execute(sql, params)
  File "django/db/backends/utils.py", line 66, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "django/db/backends/utils.py", line 75, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "django/db/utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "django/db/backends/utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)

[nijel]

Is it possible that the user submitted the form twice? In that case, it should be addressed by f7070ab.