Picklist multi-select overflows container when 6+ items added and no scroll

[diverted247]

In using the picklist-multi-select, the ul lacks overflow: auto which allows child scrolling.

<ul class="slds-picklist__options slds-picklist__options--multi shown" style="overflow: auto;">

without overflow:auto

with overflow:auto

[stefsullrew]

I've fixed this and it will be included in the next release. Thanks @diverted247. Closing for now.