fix(config): keep a query name in a nested path in alias replacement

QueryKit.UnitTests/PropertyResolverTests.cs

@@ -857,7 +857,7 @@ public void property_prevented_for_filter_and_sort_is_removed_by_its_member_name
     }
 
     [Fact]
-    public void alias_replacement_replaces_a_query_name_in_a_nested_path()
+    public void alias_replacement_does_not_replace_a_query_name_in_a_nested_path()
     {
         var config = new QueryKitConfiguration(config =>
         {
@@ -866,7 +866,20 @@ public void alias_replacement_replaces_a_query_name_in_a_nested_path()
 
         var input = config.PropertyMappings.ReplaceAliasesWithPropertyPaths("""Author.Name == "x" && name == "y" """);
 
-        input.Should().Be("""Author.Title == "x" && Title == "y" """);
+        input.Should().Be("""Author.Name == "x" && Title == "y" """);
+    }
+
+    [Fact]
+    public void filter_with_a_query_name_in_a_nested_path_resolves_the_nested_path()
+    {
+        var config = new QueryKitConfiguration(config =>
+        {
+            config.Property<Recipe>(x => x.Title).HasQueryName("name");
+        });
+
+        var filterExpression = FilterParser.ParseFilter<Recipe>("""Author.Name == "x" """, config);
+
+        filterExpression.ToDisplayString().Should().Be("""x => (x.Author.Name == "x")""");
     }
 
     [Fact]

QueryKit/QueryKitPropertyMappings.cs

@@ -150,8 +150,9 @@ public string ReplaceAliasesWithPropertyPaths(string input)
                 {
                     // Use regular expression to isolate left side of the expression. Query names and
                     // operators are matched literally, so escape any regex metacharacters they contain
-                    // (e.g. the `^` in `^^` would otherwise be read as a start-of-line anchor).
-                    var regex = AliasRegexCache.Get($@"\b{Regex.Escape(queryKitPropertyInfo.QueryName!)}\b(?=\s*{Regex.Escape(op)})");
+                    // (e.g. the `^` in `^^` would otherwise be read as a start-of-line anchor). A query name
+                    // after a dot is a segment of a nested path, so it stays.
+                    var regex = AliasRegexCache.Get($@"(?<!\.)\b{Regex.Escape(queryKitPropertyInfo.QueryName!)}\b(?=\s*{Regex.Escape(op)})");
 
                     input = regex.Replace(input, propertyPath);
                 }