Form Builder will sometimes refresh while adding fields

• Type: Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: Master
• Fix Version/s: Master
• Component/s: Forms
• Labels:
  • QA-AUTOMATION
  • fw_test_poshi
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/55417
• QA Test Name:
  • Forms#Add30Fields
  • Forms#DeleteSelectFromListOptionValue
  • FormsJumpToPage#ViewPagesAfterJump
  • FormsJumpToPage#ViewRuleAfterLabelEdit
• QA Test Score: 16

Steps to Reproduce:

1. Go to Content > Forms
2. Add new form
3. Click "Add Field"
4. Choose "Text Field"
5. Input label "Field"
6. Repeat steps 3-5 20 times.

Expected Result:
User can continue to add fields.

Actual Result:
While adding fields, the page will refresh and a blank form will be shown.

Reproduced both manually and through automated testing on
Firefox 45
Chrome 62
Master: f0f823cbde684e1519cd5ac7e8160f0cd950be9e