Master 2.1.1 (#5858)

* Update version

* Don't delete annotations if there aren't any (#5829)

* don't delete annotations if there aren't any

* add test and align playwright-test

* align core with test

* added annotation describing test

* Add `aria-label` for time conductor history button (#5830)

* [Overlay Plot] Inspector series and legend sync fix (#5835)

* fixed overlay plots to react to series removals correctly, added alias visual to elements pool aliased items

* Keep transaction open on failed editor save (#5840)

* do not end a transaction on a failed editor save
* add unit tests for successful editor save and unsuccessful editor save

* If no matching tags, do not attempt tag search (#5839)

* do not attempt search if no matching tags

* fix timing on test

* commit again in hopes that github will run checks

* add back null tag check

* add some better documentation to tests

Co-authored-by: Andrew Henry <akhenry@gmail.com>

* Update version for  master

Co-authored-by: Scott Bell <scott@traclabs.com>
Co-authored-by: Jesse Mazzella <ozyx@users.noreply.github.com>
Co-authored-by: Jamie V <jamie.j.vigliotta@nasa.gov>
Co-authored-by: David Tsay <3614296+davetsay@users.noreply.github.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>

src/api/annotation/AnnotationAPI.js

@@ -346,6 +346,10 @@ export default class AnnotationAPI extends EventEmitter {
     */
     async searchForTags(query, abortController) {
         const matchingTagKeys = this.#getMatchingTags(query);
+        if (!matchingTagKeys.length) {
+            return [];
+        }
+
         const searchResults = (await Promise.all(this.openmct.objects.search(matchingTagKeys, abortController, this.openmct.objects.SEARCH_TYPES.TAGS))).flat();
         const filteredDeletedResults = searchResults.filter((result) => {
             return !(result._deleted);