SSearchableComboBox does not seem to be working properly in 4.26

Hi, I have been using SSearchableComboBox in a few of my editor tools, and in 4.26 it seems to have changed significantly. To make sure it wasn’t my implementation of it that was the problem, I set up the simplest version of this widget, and it still behaves strangely. This is what I observed: if you type something in the search bar, the widget closes. If you select something, and then type something in the search bar, it will work, as long as the text appears in your selection, otherwise it defaults your selection and closes.