diff --git a/jOOQ/src/main/java/org/jooq/impl/AbstractRecord.java b/jOOQ/src/main/java/org/jooq/impl/AbstractRecord.java
index 477e609fe8..86bcaeba3e 100644
--- a/jOOQ/src/main/java/org/jooq/impl/AbstractRecord.java
+++ b/jOOQ/src/main/java/org/jooq/impl/AbstractRecord.java
@@ -1017,8 +1017,9 @@ abstract class AbstractRecord extends AbstractStore implements Record {
         for (int i = 0; i < s && i < t; i++) {
             int j = indexMapping == null ? i : indexMapping[i];
 
+            // [#12697] Don't re-apply data type conversion, assuming it already happened
             if (source.field(j) != null && source.changed(j))
-                Tools.setValue(this, field(j), j, source, j);
+                set((Field) field(j), j, source.get(j));
         }
     }
 
diff --git a/jOOQ/src/main/java/org/jooq/impl/AbstractResult.java b/jOOQ/src/main/java/org/jooq/impl/AbstractResult.java
index 6ee909d9d6..45b36099b8 100644
--- a/jOOQ/src/main/java/org/jooq/impl/AbstractResult.java
+++ b/jOOQ/src/main/java/org/jooq/impl/AbstractResult.java
@@ -1361,7 +1361,7 @@ abstract class AbstractResult<R extends Record> extends AbstractFormattable impl
         }
         else if (value instanceof Record) { Record r = (Record) value;
             formatted += Arrays
-                .stream(r.valuesRow().fields())
+                .stream(r.intoArray())
                 .map(f -> format0(f, false, visual))
                 .collect(joining(", ", "(", ")"));
         }