I've added a tab to my umbraco back office home page that allows you to edit a config file from the back office. After the form is saved, I would like the form to keep the value but be set pristine instead of staying as dirty, since leaving the page now makes the "you have unsaved changes" tab open. Currently, my code looks like: HTML:

<div ng-controller="rewriteConfigTabController">
<form novalidate name="rewriteForm">
    <div>
        <h3><strong>Rewrite Config</strong></h3>
        <div>Use this to change the rewrite maps for Clark Marketing. Remember to build after making changes!</div><br />
        <div>You will need to add a rule for your site to the rewrite section of Web.config.</div><br />
    </div>
    <div name="success" ng-show="successText != null" class="alert alert-success property-error ng-binding">{{successText}}</div>
    <div name="errors" ng-show="errorText != null" class="alert alert-error property-error ng-binding">{{errorText}}</div>
    <textarea id="rewriteEditor" ng-model="configText" rows="30" cols="150"></textarea><br />
    <umb-button type="button" action="save(configText)" label="Save" button-style="success"></umb-button>
</form>

Validation where we would be setting it to pristine:

function validateTextboxXml(text,scope) {
var Module = {
    xml: text,
    schema: xmlSchema,
    arguments: ["--noout", "--schema", "xml", "schema"]
};
var errors = validateXML(Module);
if (errors.substring(0, 16) == 'schema validates') {            //errors == "schema validates\n" when this is true
    scope.successText = "Rewrites updated.";
    scope.errorText = null;
    scope.rewriteForm.$pristine = true;
    scope.rewriteForm.$dirty = false;
    return true;
}
else {
    scope.errorText = errors;
    scope.successText = null;
    return false;
}

}

When this runs the form is still dirty after going through. Any help would be appreciated, Thanks. Carson