Is there a way to force gstreamer to redraw after I resizing glimagesink

[Stuart Axon]

Hi,   I use glimagesink on raspberry pi.    When I change the content, I resize the window, however sometimes I see the old content in the window at the wrong size.
Is there a way to force gstreamer to do a redraw, immediately after I do the resize, or should I be clearing the buffer myself ? S++
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