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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: PhenX

src/EntityFrameworkCore.Projectables/Extensions/QueryableExtensions.cs

@@ -10,15 +10,21 @@ public static IQueryable<TModel> ExpandProjectables<TModel>(this IQueryable<TMod
 
     /// <summary>
     /// Ensures that all writable <c>[Projectable]</c> properties on <typeparamref name="TModel"/> are populated
-    /// in query results by automatically generating a SELECT projection that merges all EF-mapped columns with
+    /// in query results by automatically generating a SELECT projection that merges all EF-mapped properties and navigations with
     /// the expression-expanded value of every writable projectable property.
     /// <para>
     /// This method is particularly useful when fetching full entities (e.g. <c>FirstAsync()</c>,
-    /// <c>ToListAsync()</c>) on a tracking context where the automatic select injection is otherwise
-    /// suppressed to preserve change-tracking semantics. Call this method after any <c>Where</c>
+    /// <c>ToListAsync()</c>) on queries that are tracked by default, where the automatic select injection is
+    /// otherwise suppressed to preserve change-tracking semantics. Call this method after any <c>Where</c>
     /// or <c>OrderBy</c> clauses and before terminal operators.
     /// </para>
     /// <para>
+    /// This method currently delegates to <see cref="ExpandProjectables{TModel}(IQueryable{TModel})"/> and does
+    /// not override the root-rewrite guard for queries that already contain an explicit <c>AsTracking()</c> call
+    /// in the expression tree. As a result, <c>query.AsTracking().AsExpandedProperties()</c> does not currently
+    /// force projection injection.
+    /// </para>
+    /// <para>
     /// Read-only projectable properties (those without a setter) are not included in the generated projection
     /// because EF Core's materializer cannot set them on the resulting entity.
     /// </para>