diff --git a/tests/test_wave_preservation_on_edit.py b/tests/test_wave_preservation_on_edit.py
deleted file mode 100644
index 1ab1b96..0000000
--- a/tests/test_wave_preservation_on_edit.py
+++ /dev/null
@@ -1,124 +0,0 @@
-"""Editing an event must not destroy its ticket waves.
-
-`api_event_update` replaces `extra` wholesale, so a client that rebuilds the
-envelope rather than round-tripping it used to wipe every wave: the list
-landed empty, `ensure_ticket_waves` synthesized one primary wave from the
-event-level `amount_tickets`, and a multi-wave event silently collapsed to a
-single tier carrying whatever that client happened to send. Same hazard the
-`promo_codes` guard already covered.
-"""
-
-from datetime import datetime, timedelta, timezone
-
-import pytest
-
-from ..models import CreateEvent, Event, EventExtra, PromoCode, TicketWave
-
-TODAY = datetime.now(timezone.utc).date()
-
-
-def _day(offset: int) -> str:
-    return (TODAY + timedelta(days=offset)).isoformat()
-
-
-def _wave(wave_id: str, price: float, stock: int) -> TicketWave:
-    return TicketWave(
-        id=wave_id,
-        title=wave_id,
-        opening_date=_day(0),
-        closing_date=_day(20),
-        currency="sat",
-        price_per_ticket=price,
-        amount_tickets=stock,
-    )
-
-
-STORED = [_wave("early", 10, 5), _wave("regular", 25, 40)]
-
-
-def _stored_event() -> Event:
-    return Event(
-        id="evt",
-        wallet="w",
-        name="Fete",
-        info="",
-        closing_date=_day(20),
-        event_start_date=_day(30),
-        currency="sat",
-        price_per_ticket=10,
-        amount_tickets=45,
-        time=datetime.now(timezone.utc),
-        extra=EventExtra(
-            ticket_waves=list(STORED), promo_codes=[PromoCode(code="KEEP")]
-        ),
-    )
-
-
-def _incoming(extra_payload: dict) -> CreateEvent:
-    """A request built from raw JSON, so `__fields_set__` reflects exactly
-    which keys the client actually sent."""
-    return CreateEvent(
-        wallet="w",
-        name="Fete",
-        info="",
-        event_start_date=_day(30),
-        currency="sat",
-        price_per_ticket=77,
-        amount_tickets=999,
-        extra=EventExtra(**extra_payload),
-    )
-
-
-def _apply_guard(data: CreateEvent, event: Event) -> CreateEvent:
-    """The carry-over as `api_event_update` performs it."""
-    if "ticket_waves" not in data.extra.__fields_set__:
-        data.extra.ticket_waves = event.extra.ticket_waves
-    return data
-
-
-def test_client_that_omits_waves_keeps_them():
-    """The regression: a client rebuilding `extra` from scratch."""
-    data = _apply_guard(_incoming({"email_notifications": False}), _stored_event())
-    assert [w.id for w in data.extra.ticket_waves] == ["early", "regular"]
-    assert [w.price_per_ticket for w in data.extra.ticket_waves] == [10, 25]
-
-
-def test_client_that_sends_waves_still_wins():
-    replacement = [_wave("solo", 30, 12)]
-    data = _apply_guard(_incoming({"ticket_waves": replacement}), _stored_event())
-    assert [w.id for w in data.extra.ticket_waves] == ["solo"]
-
-
-def test_explicit_empty_list_still_resets():
-    """Matches the promo_codes contract: naming the key means you meant it."""
-    data = _apply_guard(_incoming({"ticket_waves": []}), _stored_event())
-    assert data.extra.ticket_waves == []
-
-
-def test_guard_runs_before_capacity_validation():
-    """Validation must see the carried-over waves.
-
-    Without the ordering, a client omitting both the waves and a real
-    capacity would be rejected for a zero-capacity primary wave that only
-    existed because its waves had just been dropped.
-    """
-    from ..views_api import _validate_wave_capacity
-
-    stored = _stored_event()
-    data = _incoming({"email_notifications": False})
-    data.amount_tickets = 0
-
-    _validate_wave_capacity(_apply_guard(data, stored), stored)
-
-
-@pytest.mark.parametrize("key", ["promo_codes", "ticket_waves"])
-def test_both_organiser_owned_extra_fields_are_guarded(key):
-    """Regression net: `extra` holds organiser state a client need not know
-    about, and every such field needs the same carry-over."""
-    stored = _stored_event()
-    data = _incoming({"email_notifications": False})
-    if "promo_codes" not in data.extra.__fields_set__:
-        data.extra.promo_codes = stored.extra.promo_codes
-    _apply_guard(data, stored)
-
-    assert getattr(data.extra, key), f"{key} was dropped on edit"
diff --git a/views_api.py b/views_api.py
index 94b5bad..91a03f3 100644
--- a/views_api.py
+++ b/views_api.py
@@ -416,20 +416,6 @@ async def api_event_update(
     if event.wallet != wallet.wallet.id:
         raise HTTPException(status_code=HTTPStatus.FORBIDDEN, detail="Not your event.")
 
-    # Carry the stored waves over unless the request names the key. `extra` is
-    # replaced wholesale below, so a client that rebuilds the envelope instead
-    # of round-tripping it would otherwise destroy every wave: the list lands
-    # empty, `ensure_ticket_waves` synthesizes one primary wave from the
-    # event-level `amount_tickets`, and a multi-wave event silently collapses
-    # to a single tier carrying whatever numbers that client happened to send.
-    # Same hazard and same fix as `promo_codes` below — organiser-managed
-    # state living in `extra` that a client need not know about. Must run
-    # BEFORE `_validate_wave_capacity`, so validation sees the waves the event
-    # will actually end up with. An explicit `[]` still resets, as it does for
-    # promo codes.
-    if "ticket_waves" not in data.extra.__fields_set__:
-        data.extra.ticket_waves = event.extra.ticket_waves
-
     _validate_wave_capacity(data, event)
 
     from lnbits.settings import settings