resists not being accurate in towns - [minor problem]

After beating the acts the character suffers reductions in resists but while standing in towns the resists show as if you HADNT completed the area ( so they will show higher than what they actually are ).
This causes an issue; if I'm buying or crafting gear in an earlier act, my stats will not be true to my characters level and may cause unintended mistakes in gear choices.
This seems redundant as there's no reason for a level 70 character to have higher resists in act 2, the resist reduction should simply be permanent and apply to the character everywhere so we can always see our true stats vs monsters at our level.