Group membership check in v3.7

[rungok]

In one of my template-mods I have checked for group membership with this code:

<if condition="is_member_of($post, 73)">

I want to check for group memberhip in the template "memberinfo_block_ministats", but there seems to be another layer of variable-prepping or something like that. I can see that f.ex. avatar-display is using $prepared[avatarurl] instead of $userinfo[avatarurl]. Why doesn't the code above work anymore?

--------------- Added [DATE]1209818156[/DATE] at [TIME]1209818156[/TIME] ---------------

Forget it. I just found out. I'll have to use

is_member_of($userinfo, 73)