chore: remove the backlog clear from setAvailable options and trim options received in the normalized setter

Author: NarrowsProjects

lib/public/components/common/selection/SelectionModel.js

@@ -260,7 +260,6 @@ export class SelectionModel extends Observable {
 
         if (this._selectionBacklog.length) {
             this.selectedOptions = this._selectionBacklog;
-            this._selectionBacklog = [];
             this.notify();
         }
     }
@@ -355,10 +354,10 @@ export class SelectionModel extends Observable {
      * Sets selected options based on a comma-seperated string.
      * Accounts for the options being either RemoteData or an array.
      *
-     * @return {string}
+     * @param {string} value the value that is to be set.
      */
     set normalized(value) {
-        const options = value.split(',').map((option) => ({ value: option }));
+        const options = value.split(',').map((option) => ({ value: option.trim() }));
         const postponeSelection = this.options instanceof RemoteData || ! this.options?.length;
 
         if (postponeSelection) {