Some echo tests added.

internal/input/ocr_test.go

@@ -49,6 +49,9 @@ func TestOCRBindingsPreserveGlobalAndLaptopReview(t *testing.T) {
 			t.Fatal("OCR refresh or page navigation binding missing")
 		}
 		for chord, command := range global {
+			if chord == (CommandChord{Symbol: 0xffc2, CthulhuModifier: true}) {
+				continue // The temporary OCR document owns its refresh key.
+			}
 			if chord.CthulhuModifier && bindings[chord] != command {
 				t.Fatalf("global changed: %v", chord)
 			}