Add React 17 "Programmatic submit" support

[AnthonyYashchuk]

Add bubbles to Event in submit method

Reasons for making this change

Programmatic Submission does not work after upgrading to React 17.
facebook/react#20151 (comment)

fixes #2104

Checklist

• I'm updating documentation
  • I've checked the rendering of the Markdown text I've added
• I'm adding or updating code
  • I've added and/or updated tests
  • I've updated docs if needed
• I'm adding a new feature
  • I've updated the playground with an example use of the feature

[epicfaace]

Thanks for the PR. See the discussion with @dreadheadsic / @paintedbicycle here: #2104 (comment)

[heath-freenome]

This seems like a rather safe change @epicfaace

[epicfaace]

I'm still confused by the discussion in #2104 (comment) though -- does bubbles: true actually fix it? And do we understand why it fixes it?

[dreadheadsic]

Yes that absolutely fixes the issue, i've been running it on react 17 with patch-package ever since i first opened the issue #2104

[heath-freenome]

Yes that absolutely fixes the issue, i've been running it on react 17 with patch-package ever since i first opened the issue #2104

What about the form.requestSubmit() change suggested in this comment? Have you tried this?

[dreadheadsic]

Yes that absolutely fixes the issue, i've been running it on react 17 with patch-package ever since i first opened the issue #2104

What about the form.requestSubmit() change suggested in this comment? Have you tried this?

nope, didn't bother to try it as bubbles: true solves the problem.

[heath-freenome]

This was fixed slightly differently in the v5 beta via this PR