Fix issue syncing CSS classes in IE9/10
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@ -1079,8 +1079,12 @@ the specific language governing permissions and limitations under the Apache Lic
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// IE8-10
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el.on("propertychange.select2", sync);
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// IE8-10 (IE9/10 won't fire propertyChange via attachEventListener)
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if (el.length && el[0].attachEvent) {
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el.each(function() {
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this.attachEvent("onpropertychange", sync);
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});
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}
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// hold onto a reference of the callback to work around a chromium bug
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if (this.mutationCallback === undefined) {
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