Catalog Content discount glitch ?

[Statuesque]

I am using 1.7 and normally do indiviual discounts via cart rules/vouchers. As the number of products is now substantial it is taking a long time to do.

 

Setting up a catalog price rule I spotted somethig that seems to be a bug or I am doing something wrong.

 

When picking an item and setting up a percentage discount of 5.0 , the store price simply drops by 5% whether you choose including Tax or Excluding Tax in the price rule. I have tried cache clearing just in case but no difference at all. This of course makes a massive difference on prices if the discount includes or excludes the VAT

Is there a known fix for this or is it a future fix or simply me being daft. I tried googling an answer and in these forums but nothing is showing up

 

 

Thanks

Edit: Tested with a fixed price amount and tax inc / excl does actually change the price on a fixed amount. Seems the percentage amount is glitched - just a warning for those that might be doing discounts based on % and are VAT registered etc

 

Edited October 31, 2018 by Statuesque (see edit history)