fdo#76281: Fix wrong square brackets in exported citations

There was a pair of unbalanced ifs in the code to write the opening
and the closing bracket, they should have the same condition.

Change-Id: I9b3e64486d1b87a8df65d351f01eb4cc9a8b8c44

sw/source/core/fields/authfld.cxx

@@ -564,7 +564,7 @@ OUString SwAuthorityField::ConditionalExpand(ToxAuthorityField eField) const
         if(pEntry)
             sRet += pEntry->GetAuthorField(AUTH_FIELD_IDENTIFIER);
     }
-    if(pAuthType->GetSuffix())
+    if(pAuthType->GetSuffix() && eField != AUTH_FIELD_TITLE)
         sRet += OUString(pAuthType->GetSuffix());
     return sRet;
 }