FIX: Clear the cache after destroying theme_fields

app/models/theme_field.rb

@@ -372,10 +372,12 @@ class ThemeField < ActiveRecord::Base
     end
   end
 
-  after_commit on: [:create, :update] do
+  after_commit do
+    unless destroyed?
       ensure_baked!
       ensure_scss_compiles!
       theme.clear_cached_settings!
+    end
 
     Stylesheet::Manager.clear_theme_cache! if self.name.include?("scss")
     CSP::Extension.clear_theme_extensions_cache! if name == 'yaml'