Yes. I just learned about this myself a few months ago! Something about the first "BUTTON" tag without a specified 'type' is treated as a submit button. It's funny though, I had 'type="button"' on all of those and later removed them because the linter was complaining about the lines being too long. We should probably have a discussion on the mailing list about extending our allowable line lengths because I think our code suffers from readability in some cases because of this rule.