Follow-up to #1545. The close-block only fired for an invalid issuer, so an
EMA config enabled with a valid issuer but a blank client ID was still silently
dropped on close by the persist gate — the same no-feedback bug, different
field.
- validateClientSettings gains a requireComplete mode that also flags the
required IdP fields (issuer, clientId) when blank, with distinct per-field
messages. Inline (as-you-type) validation is unchanged — required-but-blank
errors only surface on reveal, so the form never nags about not-yet-filled
fields.
- canPersistClientSettingsDraft is redefined in terms of that mode, so the
persist gate and the close-time field errors share one source of truth.
- ClientSettingsModal.handleClose now blocks + reveals on ANY require-complete
error (invalid issuer OR blank required field) and keeps the modal open. The
form prop revealIssuerError becomes revealErrors and surfaces the client-ID
error too. Escape hatch: disable enterprise IdP (an empty issuer no longer
closes, since that's itself incomplete).
Tests cover the blank-clientId close path, fix-each-field, and disable-EMA
escape, plus requireComplete validation.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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