Error on get_reactions

[tom-lp-at]

first of all : thx for your hard work ;)
I tested the migration into Mattermost an had an error on get_reactions(rc_message). The Problem was: There is no reaction :)
so i changed the code from

def get_reactions(rc_message):
     mm_reactions = []
     for emoji, users in rc_message.get('reactions', {}).items():
         for username in users['usernames']:
              if username not in IGNORE_USERS:
                  mm_reactions.append(dict( 

to

def get_reactions(rc_message):
     mm_reactions = []
     reaktion = rc_message.get('reactions', {})     # This
     if reaktion is not None:                       # and this
         for emoji, users in reaktion.items():
             for username in users['usernames']:
                if username not in IGNORE_USERS:
                    mm_reactions.append(dict(

to clarify: i get the reaction and check if it is other then None.
Thats it...