private void init() {
		setHTMLRenderingEnabled(false);
		if (getRenderer() instanceof JComponent) {
			GComponent.setHTMLRenderingFlag((JComponent) getRenderer(), false);
		}
		documentListener = new MatchingItemsDocumentListener();
		addDocumentListener(documentListener);

	}
A fix for the following series of events:
<ol>
	<li>The user selects an item</li>
 <li>The user deletes the text</li>
 <li>setSelectedItem(Object) method is called with the same item</li>
</ol>

In that above series of steps, the text will still be empty, as the user deleted it *and*
the call to setSelectedItem(Object) had no effect because the base class assumed that the
item is already selected.

<p>
This method exists to make sure, in that case, that the text of the field matches the
selected item.
Ghidra/Framework/Docking/src/main/java/docking/widgets/combobox/GhidraComboBox.java