Facet: fix `this` reference in filter_value
Facet: fix `this` reference in filter_value
djpillen/appraisal-tab,djpillen/appraisal-tab,eckardm/appraisal-tab,eckardm/appraisal-tab,artefactual-labs/appraisal-tab,artefactual-labs/appraisal-tab