OS X: Shift + Delete = Forward delete annoyance

Has anyone noticed this strange behavior of OS X El Capitan regarding forward delete? The usual keyboard shortcut for this on keyboards that have no distinct forward delete button is fn + delete, which works on my MacBook Pro 13'' Early 2015 as it should.

Additionally I have a forward delete when holding down shift and delete. This is so annoying because it happens very often while writing larger texts (especially in German where you have a lot of capital lettered words) or programming that this situation occurs.

Does anyone know a way to remap/deactivate forward delete?

This is a change in behavior in the 10.11.2 beta, build 15C27e. Wether or not this is intentional or a mistake is unclear. But it is infuriating.

Assuming you only see this in Textwrangler: You can change it in Preferences: