Fix order history showing 'Shipped' for unshipped orders

[SvenBrunk]

Problem

In the account order history (page/account/order.html.twig), the shipping status check on line 32 compares:

{% elseif order.oxorder__oxsenddate.value !=" - " %}

This comparison expects the formatted empty-date string to be " - " (space-dash-space). However, OXID 7.x formats 0000-00-00 00:00:00 as "-" (just a dash, no spaces):

// Actual formatted value for an unshipped order:
order.oxorder__oxsenddate.value → "-"

// Template compares against:
" - "

// Result: "-" != " - " → true → always shows "Shipped!"

Every order in the history displays "Shipped!" regardless of whether it has actually been shipped. This includes orders that are still being processed, awaiting payment, or not yet fulfilled.

Root Cause

The date formatting changed between OXID versions. The old Smarty-era formatting produced " - " for empty dates, but the current Twig-based formatting produces "-". The template comparison was never updated to match.

Fix

Replace the single-value string comparison with a robust check that covers all known empty-date representations:

{% elseif order.oxorder__oxsenddate.value|trim not in ["", "-", " - "] %}

This handles:

• "" — empty string (e.g. NULL database value)
• "-" — current OXID 7.x formatting of 0000-00-00
• " - " — legacy formatting (backward compatible)

The |trim filter ensures leading/trailing whitespace doesn't cause further mismatches.

Scope

The same line exists in b-7.4.x, b-7.5.x, and b-8.0.x. This PR targets b-7.4.x; the fix should be cherry-picked to the other branches.

How to Reproduce

1. Create an order in the shop
2. Do not set a shipping date (leave OXSENDDATE at 0000-00-00 00:00:00)
3. Log in as the customer who placed the order
4. Navigate to "My Account" → "Order History"
5. Expected: Status shows "Not yet shipped"
6. Actual: Status shows "Shipped!"

How to Verify the Fix

After applying, repeat the steps above. Orders without a shipping date now correctly show "Not yet shipped", while orders with a real OXSENDDATE continue to show "Shipped!".