A1 Setting Picture Profile to PP11 (for video) changes the ISO settings available in Aperture Priority mode for stills

[ST]

Setting Picture Profile to PP11 (for video) changes the ISO settings available in Aperture Priority mode for stills. 
This also happens with other Picture Profiles (e.g., PP7). I don't understand why a setting for video is affecting my options for shooting stills.

I understand that choosing PP11 turns on S-Cinetone and Gamma, and I want that for video. Why does this affect the ISO for stills? You can't set the ISO lower than 125 in Aperture Priority mode. You can in Manual and have the full range of ISO values available.

• I can shoot in Manual mode, but I'd like to use Aperture Priority mode for an experiment.
• I can turn Picture Profile to OFF, but then I have to remember to turn it on again when I shoot a video.

I read through the A1 manual about Picture Profiles and various articles on the web but didn't find a way to have PP11 and use Aperture Priority mode (with the full range of ISO values available) at the same time. 

 

Can you help?
Thanks.