CVE-2026-81318 Distinct-query aggregate drops the tenant schema prefix, leaking across tenants in AshSql

Incorrect Authorization vulnerability in ash-project ashsql allows a caller in a schema-based multitenant application to receive aggregate values computed from another tenant's rows. When an aggregate is computed over a distinct query, AshSql.AggregateQuery.addsingleaggs/5 rebuilds the outer quer...