Player: progress bar show the last state on a new playback

When starting a playback after another one, the progress bar will show the previous state (progress / duration) during a split second when opening the player again.

See https://share.icloud.com/photos/076eaUXbpPK7_wv9VeLsYBZaQ

Tested on an iPad 2012 with 3.3.7 (432)

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