Fixes: NB#209147 - Postview: Downloading progress bar representation is different from layout guide
Fixes: NB#209147 - Postview: Downloading progress bar representation is different from layout guide

RevBy: Stanislav Ionascu, Joaquim Rocha, Miguel Gomez

Merge-Request: 1105

Details: Forces re-loading the graphics when MProgressIndicatorBarView changes mode. Credits to Daniel Borgmann.

ModifiedBy: Stanislav Ionascu
Details: In case if progress indicator bar changes from unknown to known or vice versa, then clear the bar images.

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