Deselect frame on lus selected.

frontend/src/components/unification/free_lu/FreeLuEdit.vue

@@ -145,6 +145,7 @@
                 this.selectedExamples = selectedExamples;
             },
             meaningLuSelected(selectedLus) {
+                this.active_slowal_frame = null;
                 this.selectedLus = selectedLus;
             },
             insideFrameSelectionChanged(selectedFrameArguments) {