IQSS11976 Fix File Replace (#12107)

* bug fix

* release note

* clarify

* further clarify

Author: qqmyers

doc/release-notes/11976-fix-file-replace.md

@@ -0,0 +1,3 @@
+A bug introduced in Dataverse 6.8 that makes attempts to replace non-tabular files via the current Dataverse UI fail has been fixed. (The bug would also cause the replace API to fail if an empty dataFileTags array is sent.)
+
+See #11976

src/main/java/edu/harvard/iq/dataverse/datasetutility/OptionalFileParams.java

@@ -618,7 +618,7 @@ private void replaceFileDataTagsInFile(DataFile df) throws DataFileTagException{
         // --------------------------------------------------
         // Is this a tabular file?
         // --------------------------------------------------
-        if (!df.isTabularData()){
+        if (!df.isTabularData() && !getDataFileTags().isEmpty()){
             String errMsg = BundleUtil.getStringFromBundle("file.metadata.datafiletag.not_tabular");
 
             throw new DataFileTagException(errMsg);