It doesn't work for me. I select the keywords and looks fine, but saving the metadata, the keyword picker is empty. in this code, after saving the editor scope.keywords is empty:

Test done:

• Load GEMET thesaurus.
• Create an iso19139 metadata with the default template.
• Add some GEMET keywords --> The widget displays the selected keywords.
• Save the metadata --> The widget content is empty. No errors in the log.
• Tried the same with the Regions thesaurus, with same results.

It doesn't work for me.

I can't reproduce your case. Can you check that the list of keywords is set in the directive attribute?

Repeated the steps described previously with a clean checkout, I get the same issue. This is the html snippet I have after saving the metadata:

<div data-gn-keyword-selector="tagsinput" data-metadata-id="110" data-element-ref="_X120_replace" data-thesaurus-title="GEMET - INSPIRE themes, version 1.0" 
data-thesaurus-key="external.theme.httpinspireeceuropaeutheme-theme" 
data-keywords="" 
data-transformations="to-iso19139-keyword,to-iso19139-keyword-with-anchor,to-iso19139-keyword-as-xlink" 
data-current-transformation="to-iso19139-keyword" data-max-tags="" data-order-by-id="false" data-lang="{&quot;eng&quot;:&quot;#&quot;}" 
data-textgroup-only="false" class="ng-isolate-scope">