If you have Enduring Hope Max and you deploy an ally, that ally will receive an additional 5 AP even though it says they receive 10pt. (i.e. they receive 15 AP instead of 10 AP).
I can provide screen shots if necessary.
*Edit: It does not work going the other way.
If your ally deploys your leader and you have Enduring Hope maxed, your ally will only receive 5 AP (EH0) and you receive 10AP.