Blender Version
Broken: 2.8 4a52531a11f

Short description of error
When using the scene lights in the material view while using the Cycles render engine, the lights in the scene all behave with the standard color and strength settings. They do not update with any changes in the settings.
Apparently the settings for Cycles and Eeevee are completely separate because when switching to Eevee the settings are different.