Validation warning: No such type 'image', not processing field

[tamt]

Dear isomorphic support:

I'm getting an unexpected validation warning on the console:
=== 2012-11-15 14:47:56,166 [l0-0] WARN Validation - [builtinApplication.bupGridDMI_update] No such type 'image', not processing field value at /bupGridDMI/recordError

I believe type "image" is valid in a data source definition seeing that the image does render on a listgrid.
Is there an explanation for the warning?
The use case is I am batching up a bunch of record changes programmatically and then calling saveAllEdits(). If I perform an update via the row editor from the listgrid, I don’t see this validation error on the console.

Product: SmartGWT 3.0p nightly build Nov 15, 2012
Browser: IE 9
Datasource fragment:

<field name="recordError" type="image" title=" " width="3%" canEdit="false"  
prompt="Contains any server side error messages that can occur for a record. A warning icon will be provided if errors exist with the content of the errors in the hover" />

Sample source:

ListGridRecord[] records = grid.getSelectedRecords();

for (Record record : records) {

   Map<String, Object> recMap = record.toMap();

   int rowNum = grid.getRecordIndex(record);

   recMap.put("test_col", "test value");
   grid.setEditValues(rowNum, recMap);
}

grid.saveAllEdits();

Console log sample:

=== 2012-11-15 14:47:56,165 [l0-0] INFO  DSResponse - [builtinApplication.bupGridDMI_update] DSResponse: Map with 15 keys
=== 2012-11-15 14:47:56,166 [l0-0] DEBUG AppBase - [builtinApplication.bupGridDMI_update] No userTypes defined, allowing anyone access to all operations for this application
=== 2012-11-15 14:47:56,166 [l0-0] DEBUG AppBase - [builtinApplication.bupGridDMI_update] No public zero-argument method named '_bupGridDMI_update' found, performing generic datasource operation
=== 2012-11-15 14:47:56,166 [l0-0] WARN  Validation - [builtinApplication.bupGridDMI_update] No such type 'image', not processing field value at /bupGridDMI/recordError

[Isomorphic]

This warning can be ignored, it will be removed in later versions.