Rising tempest bug

Rising tempest support gem seems bugged but the current iteration seems better for encouraging skill combination.

From the description, the more damage multiplier should only go up with different elemental type used recently but it currently still works with different elemental skill used recently regardless of elemental type. Using it on monk and shatter palm, frozen locus, and ice strike gives me the full damage bonus.

Reporting it as bug but can we keep it this way? lol.