Video showing the phenomenon
20180527_164414_cut.mp4 (video/mp4), 17.71 MB, created by Balint Fodor on 2018-05-27 14:57:54 UTC
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Creator: Balint Fodor
Created: 2018-05-27 14:57:54 UTC
Size: 17.71 MB

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Attachments on bug 117829: 142301 | 142315