Editing names and descriptions of Playlists in 5.0.beta2

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Problem Description: Editing names and descriptions of Playlists through the Subsonic Web interface does not work as the popup box is displayed below the layer that is supposed to grey out the background. The box can be typed into, but cannot be moved and the buttons cannot be clicked.
Troubleshooting Steps: Tried different browsers (Chrome and Safari on Mac).
Playback Application and version: Web Browser using Subsonic Directly.
Subsonic Version: 5.0.beta2 (build 4085) – August 27, 2014
Server Version: jetty-6.1.x, java 1.7.0_65, Linux (78.0 MB / 145.0 MB)
Hardware Platform: Linux