#2 Crash when restoring SeekBarPreference's saved state

[Michael Rapp]

When using a SeekBarPreference within a Fragment, the app may crash when restoring the preference's state. The issue seems to occur after the device's display remained turned of for quite some time with the preference dialog opened. When turning the device on again, the Fragment's state, including the state of the SeekBarPreference, gets restored, resulting in a crash. This bug seems not to happen after orientation changes. See attached stacktrace for further information.