The crash occured because the popup is treated like the mainwindow and the main window grabs keypresses. Because of this a paste command can be executed on the main window when attempting to paste into the search box (when ctrl-c is used as a paste binding).
Adding an empty binding for copy and paste resolves this. Additionally it was required to prevent the terminal view from handling paste requests to prevent pasting to searchbox and terminal at the same time.
RhavoX
56ed197b02