Moved non-scoped retrieval of key value into an extension method in IUmbracoDatabase.

src/Umbraco.Infrastructure/Persistence/UmbracoDatabaseExtensions.cs

@@ -1,4 +1,5 @@
 using System;
+using Umbraco.Core.Persistence.Dtos;
 
 namespace Umbraco.Core.Persistence
 {
@@ -10,5 +11,20 @@ namespace Umbraco.Core.Persistence
             if (asDatabase == null) throw new Exception("oops: database.");
             return asDatabase;
         }
+
+        /// <summary>
+        /// Gets a key/value directly from the database, no scope, nothing.
+        /// </summary>
+        /// <remarks>Used by <see cref="Runtime.CoreRuntime"/> to determine the runtime state.</remarks>
+        public static string GetFromKeyValueTable(this IUmbracoDatabase database, string key)
+        {
+            if (database is null) return null;
+
+            var sql = database.SqlContext.Sql()
+                .Select<KeyValueDto>()
+                .From<KeyValueDto>()
+                .Where<KeyValueDto>(x => x.Key == key);
+            return database.FirstOrDefault<KeyValueDto>(sql)?.Value;
+        }
     }
 }