All shape key range minimums changed from 0 to -2

I have appended a model with 52 arkit shape keys. Somehow all the range minimum on the shape keys got changed from 0 to -2. So now all my shapekey sliders go from -2 to 1 instead of 0 to 1.

Is there a way to change multiple shape key range minimum at once? Or do I have to click through and do it individually?