Regression test for #18024

actionview/test/template/tag_helper_test.rb

@@ -64,6 +64,11 @@ def test_content_tag_with_block_and_options_outside_out_of_erb
                  content_tag("a", "href" => "create") { "Create" }
   end
 
+  def test_content_tag_with_block_and_non_string_outside_out_of_erb
+    assert_equal content_tag("p"),
+                 content_tag("p") { 3.times { "do_something" } }
+  end
+
   def test_content_tag_nested_in_content_tag_out_of_erb
     assert_equal content_tag("p", content_tag("b", "Hello")),
                  content_tag("p") { content_tag("b", "Hello") },