Higher lvl Blood Rage gets replaced by lower lvl Blood Rage

Since the latest patched fixed a bug where a lower level arcane surge could replace an already existing higher level version, it made me realise that the following might also be a bug.

The Skill Blood Rage is effected the same way.

Using a Level 20 Blood Rage skill gem gives the blood rage buff for about 11 sec and the durations gets refreshed on kill.

If the player is also useing a weapon with the crafted modifier "10% chance to Trigger level 1 blood rage on kill", killing enemies replaces the level 20 version of the buff with the level 1 fro the weapon.

This can be tested by looking at the buff durations:

Lvl 20: ca 11 sec
lvl 1: ca 7 sec

Using the level 20 skill gem first and then killing mods. The buff duration gets refreshed to 7 sec constantly instead of 11.

This leads me to belive that the strong buff was completly replaced by the weaker one.

Since a simialr behavior was considered bugged for arcane surge, this should also be fixed for the skill Blood Rage.