IMac Retina: Change in color tone on wake up?

It's been discussed here before, but I thought I'd bring it up again to see if someone else's noticed it by now when the iMac's been out for a while.
When waking up from sleep, my iMac does two things.
After maybe two seconds it does a light adjustment.
After 5-8 seconds there seems to be a shift in the color tone, to a warmer one.
Here's a picture showing the color difference right before and right after the tone shift:
Note:
I do not use Flux.
I'm using the standard iMac color profile
Automatic light adjusting doesn't seem to affect this.

It's been discussed here before, but I thought I'd bring it up again to see if someone else's noticed it by now when the iMac's been out for a while.
When waking up from sleep, my iMac does two things.
After maybe two seconds it does a light adjustment.
After 5-8 seconds there seems to be a shift in the color tone, to a warmer one.
Here's a picture showing the color difference right before and right after the tone shift:
Note:
I do not use Flux.
I'm using the standard iMac color profile
Automatic light adjusting doesn't seem to affect this.

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