core, DownloadManager: drop duplicate downloads

Authored by hkaelberer on Mar 31 2016, 6:50 PM.

Description

core, DownloadManager: drop duplicate downloads

Before starting a resource download we should check if there is
already one running or scheduled for the same download URL.

Details

Committed
hkaelbererMar 31 2016, 6:52 PM
Parents
R2:f7c2e630f1dd: add chessboard border
Branches
Unknown
Tags
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