fix(metadata): :property dedup drops repeated parameters

[soyuka]

Q	A
Branch?	4.2
Tickets	Closes #8184
License	MIT

Summary

Multiple #[QueryParameter(key: ':property', ...)] class-level attributes with disjoint properties lists were silently collapsed to the last attribute. Same key, different filter per property was unreachable without awkward namespacing (exact[:property], partial[:property]).

Example

#[ApiResource]
#[QueryParameter(key: ':property', filter: new ExactFilter(), properties: ['field1', 'field2'])]
#[QueryParameter(key: ':property', filter: new BooleanFilter(), properties: ['field3', 'field4'])]
class Task { /* ... */ }

Before this fix only the second attribute survived; after the fix all four properties resolve to their declared filters.

Why

Parameters::add(), Parameters::__construct(), and MetadataCollectionFactoryTrait::mergeOperationParameters() deduplicated by (class, key) before the :property placeholder was expanded. ParameterResourceMetadataCollectionFactory::getProperties() cache key was also shared between disjoint templates.

:property is a template, not a final key — it expands per-property in ParameterResourceMetadataCollectionFactory::getDefaultParameters. Two templates with disjoint properties lists must coexist; the final per-property keys are concrete and dedup normally.

What changed

• Parameters::add / Parameters::__construct: when key contains :property, the storage key includes a discriminator built from the parameter's properties (or property) list. Deterministic, cache-safe.
• MetadataCollectionFactoryTrait::mergeOperationParameters: skip the has() short-circuit for :property templated keys.
• ParameterResourceMetadataCollectionFactory::getProperties: include properties list in the local cache key.

Templates with identical properties keep last-write-wins (intentional override).

Tests

• Metadata\Tests\ParametersTest: two new tests cover constructor and add() paths.
• Metadata\Tests\Resource\Factory\ParameterResourceMetadataCollectionFactoryTest::testRepeatedPropertyPlaceholderAttributesExpandPerPropertyFilter: end-to-end factory expansion verifying each property receives its declared filter.

Related

#7870 (per-property Parameter attributes via TARGET_PROPERTY) provides a complementary, cleaner declaration model for the original use case in #8184 once it lands.