Success! Looks like we've fixed this one. According to our records the fix was applied for EXTJS-6595 in a recent build.
  1. #1
    Sencha - Community Support Team grgur's Avatar
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    Aug 2007
    Split, Croatia
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    Default BasicForm reset should remove reference to _record

    BasicForm reset should remove reference to _record

    Ext version tested:
    • Ext 4.1

    Browser versions tested against:
    • Chrome 21

    DOCTYPE tested against:
    • <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "">

    • I am using the same instance of a form to create and update data in a store. When I update, i use loadRecord() to load data from an existing instance. If the next step was creating a record, just by doing formPanel.getForm().reset() will still keep the old _record reference in memory, thus updateRecord() will try to write over the last record used. reset method should ideally delete the _record reference, and updateMethod should exit gracefully if no record is supplied.
    • Not sure if this is a feature request or a bug. The whole idea is lessening the amount of code on the app side and keeping the logic within the framework

    Possible fix:
        // Ext.form.Basic
       reset: function() {
            var me     = this,
                fields = me.getFields().items,
                fLen   = fields.length;
            for (f = 0; f < fLen; f++) {
            // delete reference to me._record if it exists
            delete me._record;
            return me;
        updateRecord: function(record) {
            record = record || this._record;
            // just exit gracefully if record does not exist
            if (!record) {
                return false;
            var fields = record.fields.items,
                values = this.getFieldValues(),
                obj = {},
                i = 0,
                len = fields.length,
            for (; i < len; ++i) {
                name  = fields[i].name;
                if (values.hasOwnProperty(name)) {
                    obj[name] = values[name];
            return this;
    Grgur Grisogono
    Ext JS in Action SE co-author
    Exercising awesomeness at Modus Create - Official Sencha Partner

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  2. #2
    Sencha - Ext JS Dev Team dongryphon's Avatar
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    Jul 2009
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    Thanks for the great bug report! Fixed for 4.1.2
    Don Griffin
    Ext JS Development Team Lead

    Check the docs. Learn how to (properly) report a framework issue and a Sencha Cmd issue

    "Use the source, Luke!"

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