Qt: SeekSlider: missing initializer

modules/gui/qt4/util/input_slider.cpp

@@ -57,6 +57,7 @@ SeekSlider::SeekSlider( Qt::Orientation q, QWidget *_parent, bool _static )
           : QSlider( q, _parent ), b_classic( _static )
 {
     isSliding = false;
+    isJumping = false;
     f_buffering = 1.0;
     mHandleOpacity = 1.0;
     chapters = NULL;