4.8.3: If my battery is low the display is dimmed ~20 seconds after I moved the mouse last. This should actually be one minute, but anyway.

debug shows:

kded(1714) PowerDevilUPowerBackend::brightness: Screen brightness:  100
kded(1714) PowerDevilUPowerBackend::brightness: Screen brightness:  100
kded(1714) PowerDevilUPowerBackend::setBrightness: set screen brightness:  50

Wrong timing, but ok. Yet a few seconds later the display is dimmed again.

kded(1714) PowerDevilUPowerBackend::brightness: Screen brightness:  57.1429
kded(1714) PowerDevilUPowerBackend::setBrightness: set screen brightness:  14.2857

powermanagementprofilesrc:

[AC]
icon=battery-charging

[AC][BrightnessControl]
value=100

[AC][DPMSControl]
idleTime=600

[AC][HandleButtonEvents]
lidAction=1
powerButtonAction=16

[Battery]
icon=battery-060

[Battery][BrightnessControl]
value=60

[Battery][DPMSControl]
idleTime=300

[Battery][DimDisplay]
idleTime=120000

[Battery][HandleButtonEvents]
lidAction=1
powerButtonAction=16

[Battery][SuspendSession]
idleTime=600000
suspendType=1

[LowBattery]
icon=battery-low

[LowBattery][BrightnessControl]
value=30

[LowBattery][DPMSControl]
idleTime=120

[LowBattery][DimDisplay]
idleTime=60000

[LowBattery][HandleButtonEvents]
lidAction=1
powerButtonAction=16

[LowBattery][SuspendSession]
idleTime=300000
suspendType=1


Reproducible: Always

Steps to Reproduce:
1. Use the above settings
2. Wait until the battery is low
3. Wait until the screen is dimmed
Actual Results:  
dimmed too early (yab)
dimmed twice

Expected Results:  
dim only once