A little off-topic: since 10.10 or so, FileMerge has started opening the bottom, free-editing pane by default—and at a random height, at that. Has anyone figure

A little off-topic: since 10.10 or so, FileMerge has started opening the bottom, free-editing pane by default—and at a random height, at that. Has anyone figured out how to disable that? It's driving me into the arms of a different, otherwise inferior diff tool.