Fixed: Select all selecting hidden items

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

frontend/src/Components/Table/Cells/TableSelectCell.js

@@ -20,6 +20,15 @@ class TableSelectCell extends Component {
     onSelectedChange({ id, value: isSelected });
   }
 
+  componentWillUnmount() {
+    const {
+      id,
+      onSelectedChange
+    } = this.props;
+
+    onSelectedChange({ id, value: null });
+  }
+
   //
   // Listeners
 

frontend/src/Utilities/Table/toggleSelected.js

@@ -9,6 +9,10 @@ function toggleSelected(state, items, id, selected, shiftKey) {
     [id]: selected
   };
 
+  if (selected == null) {
+    delete selectedState[id];
+  }
+
   if (shiftKey && lastToggled) {
     const { lower, upper } = getToggledRange(items, id, lastToggled);