Web Content toolbar automatically saves

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X
• Fix Version/s: 7.0.0 DXP FP58, 7.0.0 DXP SP9, 7.0.X
• Component/s: Web Content > Web Content Administration
• Labels:
  • Spencer_Woo
  • ee-7.0.x-only
  • ee-ts
  • liferay-dxp-70-sp9
  • liferay-fixpack-de-58-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 0.25
• Fix Priority: 4
• Git Pull Request: https://github.com/liferay/liferay-portal-ee/pull/9289

Steps to Reproduce
1) Add a web content display to a page
2) Add a new web content article through the display portlet
3) Type some text.  Highlight some text.
4) Click "Normal" to change style.

Expected Results
Toolbar style dropdown allows you to change style.

Actual Results
Submission occurs ("Your request completed successfully.").

Master: Not Reproduced 5bfaf5131c93e91b9a8c6a99310f73991d5585d7
70x: Reproduced 4633af2a452c6787be97ee8d67e89c8d5375f91e

Notes
I believe the unique 70x backport for LPS-82046 caused this issue (BPR-16176).