Making it so SqlBuilder templates resolve properly even if no clauses have been added.

Dapper.Contrib.Tests/Tests.cs

@@ -103,7 +103,7 @@ public void InsertGetUpdate()
             }
         }
 
-        public void SelectClause()
+        public void BuilderSelectClause()
         {
             using (var connection = GetOpenConnection())
             {
@@ -132,5 +132,22 @@ public void SelectClause()
                 }
             }
         }
+
+        public void BuilderTemplateWOComposition()
+        {
+            var builder = new SqlBuilder();
+            var template = builder.AddTemplate("SELECT COUNT(*) FROM Users WHERE Age = @age", new {age = 5});
+
+            if (template.RawSql == null) throw new Exception("RawSql null");
+            if (template.Parameters == null) throw new Exception("Parameters null");
+
+            using (var connection = GetOpenConnection())
+            {
+                connection.Insert(new User { Age = 5, Name = "Testy McTestington" });
+
+                if (connection.Query<int>(template.RawSql, template.Parameters).Single() != 1)
+                    throw new Exception("Query failed");
+            }
+        }
     }
 }

Dapper.Contrib/SqlMapperExtensions.cs

@@ -476,7 +476,7 @@ public class Template
             readonly string sql;
             readonly SqlBuilder builder;
             readonly object initParams;
-            int dataSeq;
+            int dataSeq = -1; // Unresolved
 
             public Template(SqlBuilder builder, string sql, dynamic parameters)
             {