When removing once added portlets appear again on application menu only after page refresh

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, 7.2.X, 7.3.X, Master
• Fix Version/s: 7.1.10 DXP FP23, 7.1.10.6 SP6, 7.1.X, 7.2.10 DXP FP13, 7.2.X, 7.3.7 CE GA8, 7.3.10 DXP FP2, 7.3.X, 7.4.0 CE GA1, 7.4.13 DXP GA1, Master
• Component/s: Pages > Widget Pages
• Labels:
  • ee-ts
  • liferay-dxp-71-sp6
  • liferay-fixpack-dxp-13-7210
  • liferay-fixpack-dxp-2-7310
  • liferay-fixpack-dxp-23-7110
• Branch Version/s:
  7.3.x, 7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 3

Reproduction Steps:

1. add a public page as a widget page.
2. Go to the new page configuration under the advanced settings at "CUSTOMIZATION SETTINGS" enable "customizable" for column-1 and column-2.
3. Go to the Page and click on the "+" icon to open the application menu, and add to the page any portlet that can be added only once (for example, Alerts Portlet".
   Note: Observe that the Portlet in the application menu is greyed out.
4. Go to the 3 dot menu of the Portlet and click "Remove" and click OK to confirm the removal of the Portlet.

Actual Result: The Portlet in the menu is still greyed out, and it will be available again to use after refreshing the page.

Expected Result: After removing the portlet from the Page it should be automatically available again in the application menu for use.