Fixed Jinja2 filter: super.setup() was not called.
Fixed Jinja2 filter: super.setup() was not called.

The tests caught this.

heynemann/webassets,john2x/webassets,aconrad/webassets,scorphus/webassets,scorphus/webassets,john2x/webassets,heynemann/webassets,florianjacob/webassets,wijerasa/webassets,glorpen/webassets,0x1997/webassets,glorpen/webassets,aconrad/webassets,florianjacob/webassets,wijerasa/webassets,JDeuce/webassets,JDeuce/webassets,glorpen/webassets,aconrad/webassets,0x1997/webassets,heynemann/webassets