Got at least one data fetching method working; turns out, we can't use a patched LogicStack to get the data

Vendor/Swan.Lite-3.1.0/Extensions.Enumerable.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Swan
+{
+    /// <summary>
+    /// This class contains extension methods for types implementing IEnumerable&lt;TSource&gt;
+    /// </summary>
+    public static class EnumerableExtensions
+    {
+        /// <summary>
+        /// This method returns the <see cref="Enumerable.Union{TSource}">Union</see>
+        /// of all non-null parameters.
+        /// </summary>
+        /// <typeparam name="TSource">The type of the elements of the input sequences.</typeparam>
+        /// <param name="this">An IEnumerable&lt;TSource&gt; whose distinct elements forms the first set of the union.</param>
+        /// <param name="second">An IEnumerable&lt;TSource&gt; whose distinct elements forms the second set of the union.</param>
+        /// <returns>
+        /// An <see cref="IEnumerable{TSource}" /> that contains the elements from non-null input sequences, excluding duplicates.
+        /// </returns>
+        public static IEnumerable<TSource> UnionExcludingNulls<TSource>(this IEnumerable<TSource> @this, IEnumerable<TSource> second)
+            => Enumerable.Union(
+                @this ?? Enumerable.Empty<TSource>(),
+                second ?? Enumerable.Empty<TSource>());
+
+        /// <summary>
+        /// This method returns the <see cref="Enumerable.Union{TSource}">Union</see>
+        /// of all non-null parameters.
+        /// </summary>
+        /// <typeparam name="TSource">The type of the elements of the input sequences.</typeparam>
+        /// <param name="this">An IEnumerable&lt;TSource&gt; whose distinct elements forms the first set of the union.</param>
+        /// <param name="second">An IEnumerable&lt;TSource&gt; whose distinct elements forms the second set of the union.</param>
+        /// <param name="comparer">The IEqualityComparer&lt;TSource&gt; to compare values.</param>
+        /// <returns>
+        /// An <see cref="IEnumerable{TSource}" /> that contains the elements from non-null input sequences, excluding duplicates.
+        /// </returns>
+        public static IEnumerable<TSource> UnionExcludingNulls<TSource>(this IEnumerable<TSource> @this, IEnumerable<TSource> second, IEqualityComparer<TSource> comparer)
+            => Enumerable.Union(
+                @this ?? Enumerable.Empty<TSource>(),
+                second ?? Enumerable.Empty<TSource>(),
+                comparer);
+    }
+}