Merge pull request cheelim1#13 from cheelim1/fix/jc-update-user2

Fix Update JC User display name

jumpcloud/resource_user.go

@@ -227,10 +227,13 @@ func resourceUserUpdate(d *schema.ResourceData, m interface{}) error {
 
 	// Dynamically set the display name if there's a change
 	if d.HasChange("display_name") {
-		if displayName, ok := d.GetOk("display_name"); ok {
-			payload.Displayname = displayName.(string)
+		_, ok := d.GetOk("display_name")
+		if !ok {
+			// The attribute was removed from the configuration, so we explicitly clear it.
+			payload.Displayname = ""
 		} else {
-			payload.Displayname = "" // Clear display name if not provided in the config
+			// The attribute has a new value.
+			payload.Displayname = d.Get("display_name").(string)
 		}
 	}