Problems in filter data by user group

[AnnalisaS]

I've watched the video https://vimeo.com/83966790 on how-to filter data based on users group and I've tried to apply to my project (QGIS 2.8.2, Lizmap plugin 1.9.10, web-client 2.11).
I've created a string attribute and a group with identifier = the value of that attribute. I've added the filter layer in the tools tab, with "filter by user = false" and set cache client side = 0. All according this documentation: http://docs.3liz.com/en/publisher_guide/advanced_lizmap_config.html#filtered-layers-filtering-data-in-function-of-users
The filter doesn't work.
The only way to filter data that I've found is create an user with username equals to the value of a group attribute and set the option "filter by user = true". But I don't need filter by user, I'd like to filter by group, as default!
Maybe new lizmap versions have introduced this error?

[Gustry]

It seems it's a Lizmap Web client issue. There is already this ticket 3liz/lizmap-web-client#988 please use it.