In Coerce use the qualified name instead of unqualified so that fields are equal again when compared to each other

The Coerce'ed field renders the full qualified name in SQL, but the field-name is used for comparison, so the name should match the rendered SQL

jOOQ/src/main/java/org/jooq/impl/Coerce.java

@@ -54,7 +54,7 @@ final class Coerce<T> extends AbstractField<T> {
     private final Field<?>    field;
 
     public Coerce(Field<?> field, DataType<T> type) {
-        super(field.getUnqualifiedName(), type);
+        super(field.getQualifiedName(), type);
 
         this.field = (field instanceof Coerce) ? ((Coerce<?>) field).field : field;
     }