Leader Bait-and-Switch Issue

I do not recall seeing this before: leaders show a skill level before you hire them, then their skill level decreases after you hire them.

The first screen snapshot shows 2 leaders before I hire them (note their Diligence levels).  The second screen snapshot shows the same 2 leaders after I hire them (note their Diligence levels).  Both leader lost 6 points of Diligence during the hiring process.  Why?

Here is a link to a save file made before they are hired so you can see this yourself:

https://www.dropbox.com/s/15djbyq7z6b9jfp/Leader%20Issue%20Under%201.50.374227.1.GC4Sav?dl=0