title: Error when setting a value to Multivalue Managed metadata field type using SharePoint REST API
body: <p>I have two managed metadata fields in my list, they both can have <strong>multiple values</strong>, the first one is <strong>'mm'</strong> and the second one has a danish symbol <strong>Ø</strong> - <strong>'mm_Ø'</strong>. 
  I fetch the fields information using SharePoint REST API endpoint: </p>
  
  <pre><code>GET https://{tenant}.sharepoint.com/{site-path}/_api/Web/Lists(guid'{list-id}')/fields
  </code></pre>
  
  <p>In the response I see my fields definitions:
  The <strong>'mm'</strong> field is:</p>
  
  <pre><code> {
          "odata.type": "SP.Taxonomy.TaxonomyField",
          ***
          "CanBeDeleted": true,
          "ClientSideComponentId": "00000000-0000-0000-0000-000000000000",
          "ClientSideComponentProperties": null,
          "ClientValidationFormula": null,
          "ClientValidationMessage": null,
          "CustomFormatter": null,
          "DefaultFormula": null,
          "DefaultValue": "",
          "Description": "",
          "Direction": "none",
          "EnforceUniqueValues": false,
          "EntityPropertyName": "mm",
          "Filterable": true,
          "FromBaseType": false,
          "Group": "Custom Columns",
          "Hidden": false,
          "Id": "f863fab3-5611-4d81-82f9-299c42e6258c",
          "Indexed": false,
          "IndexStatus": 0,
          "InternalName": "mm",
          "JSLink": "SP.UI.Taxonomy.js|SP.UI.Rte.js(d)|SP.Taxonomy.js(d)|ScriptForWebTaggingUI.js(d)",
          "PinnedToFiltersPane": false,
          "ReadOnlyField": false,
          "Required": false,
          "SchemaXml": "***",
          "Scope": ***,
          "Sealed": false,
          "ShowInFiltersPane": 0,
          "Sortable": false,
          "StaticName": "mm",
          "Title": "mm",
          "FieldTypeKind": 0,
          "TypeAsString": "TaxonomyFieldTypeMulti",
          "TypeDisplayName": "Managed Metadata",
          "TypeShortDescription": "Managed Metadata",
          "ValidationFormula": null,
          "ValidationMessage": null,
          "AllowMultipleValues": true,
          "DependentLookupInternalNames": [],
          "IsDependentLookup": false,
          "IsRelationship": true,
          "LookupField": "Term$Resources:core,Language;",
          "LookupList": "{6eaf0d27-f293-4017-bac5-b3ef9b3fe079}",
          "LookupWebId": "e0087d65-0dcb-41a5-bb7c-c4b2f94fed59",
          "PrimaryFieldId": null,
          "RelationshipDeleteBehavior": 0,
          "UnlimitedLengthInDocumentLibrary": false,
          "AnchorId": "00000000-0000-0000-0000-000000000000",
          "CreateValuesInEditForm": false,
          "IsAnchorValid": true,
          "IsKeyword": false,
          "IsPathRendered": false,
          "IsTermSetValid": true,
          "Open": true,
          "SspId": "a1796552-9a87-4f1d-95d5-b4a3fc8f143d",
          "TargetTemplate": null,
          "TermSetId": "8ed8c9ea-7052-4c1d-a4d7-b9c10bffea6f",
          "TextField": "93148f4a-853f-4851-a600-3f76b38d030a",
          "UserCreated": false
      }
  </code></pre>
  
  <p>And the <strong>'mm_Ø'</strong> field:</p>
  
  <pre><code>{
              "odata.type": "SP.Taxonomy.TaxonomyField",
              ***
              "AutoIndexed": false,
              "CanBeDeleted": true,
              "ClientSideComponentId": "00000000-0000-0000-0000-000000000000",
              "ClientSideComponentProperties": null,
              "ClientValidationFormula": null,
              "ClientValidationMessage": null,
              "CustomFormatter": null,
              "DefaultFormula": null,
              "DefaultValue": "",
              "Description": "",
              "Direction": "none",
              "EnforceUniqueValues": false,
              "EntityPropertyName": "mm__x00d8_",
              "Filterable": true,
              "FromBaseType": false,
              "Group": "Custom Columns",
              "Hidden": false,
              "Id": "8b6cb6c7-5bdf-4e87-95e0-8ad6db1bc60e",
              "Indexed": false,
              "IndexStatus": 0,
              "InternalName": "mm__x00d8_",
              "JSLink": "SP.UI.Taxonomy.js|SP.UI.Rte.js(d)|SP.Taxonomy.js(d)|ScriptForWebTaggingUI.js(d)",
              "PinnedToFiltersPane": false,
              "ReadOnlyField": false,
              "Required": false,
              "SchemaXml": "***",
              "Scope": ***,
              "Sealed": false,
              "ShowInFiltersPane": 0,
              "Sortable": false,
              "StaticName": "mm__x00d8_",
              "Title": "mm_Ø",
              "FieldTypeKind": 0,
              "TypeAsString": "TaxonomyFieldTypeMulti",
              "TypeDisplayName": "Managed Metadata",
              "TypeShortDescription": "Managed Metadata",
              "ValidationFormula": null,
              "ValidationMessage": null,
              "AllowMultipleValues": true,
              "DependentLookupInternalNames": [],
              "IsDependentLookup": false,
              "IsRelationship": true,
              "LookupField": "Term$Resources:core,Language;",
              "LookupList": "{6eaf0d27-f293-4017-bac5-b3ef9b3fe079}",
              "LookupWebId": "e0087d65-0dcb-41a5-bb7c-c4b2f94fed59",
              "PrimaryFieldId": null,
              "RelationshipDeleteBehavior": 0,
              "UnlimitedLengthInDocumentLibrary": false,
              "AnchorId": "00000000-0000-0000-0000-000000000000",
              "CreateValuesInEditForm": false,
              "IsAnchorValid": true,
              "IsKeyword": false,
              "IsPathRendered": false,
              "IsTermSetValid": true,
              "Open": true,
              "SspId": "a1796552-9a87-4f1d-95d5-b4a3fc8f143d",
              "TargetTemplate": null,
              "TermSetId": "8ed8c9ea-7052-4c1d-a4d7-b9c10bffea6f",
              "TextField": "b658e553-725e-4e24-9a6a-c911b50d68a4",
              "UserCreated": false
          }
  </code></pre>
  
  <p>Now, I want to create an item in that list using REST endpoint:</p>
  
  <pre><code>POST https://{tenant}.sharepoint.com/{site-path}/_api/Web/Lists(guid'{list-id}')/items
  </code></pre>
  
  <p>First I try to create an item only filling the <strong>mm</strong> field
  Body:</p>
  
  <pre><code>{
    "Title": "Item1",
    "f863fab356114d8182f9299c42e6258c": "taxonomy|24a5a5fa-7a1d-48d6-8a2d-7937429dfd71;taxonomy2|23901385-e142-458c-85f2-4b5ca5dbd812"
  }
  </code></pre>
  
  <p>And it works. Now I want to do the same but filling the <strong>'mm_Ø'</strong> field.
  Body:</p>
  
  <pre><code>{
    "Title": "ee",
    "l910ce92c882443cb3134a7aeed731f7": "taxonomy|24a5a5fa-7a1d-48d6-8a2d-7937429dfd71;taxonomy2|23901385-e142-458c-85f2-4b5ca5dbd812"
   }
  </code></pre>
  
  <p>The response I get:</p>
  
  <pre><code>{
      "odata.error": {
          "code": "-2130575340, Microsoft.SharePoint.SPException",
          "message": {
              "lang": "en-US",
              "value": "One or more field types are not installed properly. Go to the list settings page to delete these fields."
          }
      }
  }
  </code></pre>
  
  <p>Does it mean that having symbols other than English in the Managed Metadata causes SharePoint REST API to fail?</p>