View-only permissions still allow changes in Planning view

Issue Summary

View-only permissions set for Capabilities and Epics.
Capabilities can be added to Epics in Epic Planning from EpicGrid.

Steps to Reproduce

Permissions set:

1. Open EpicGrid.asp
2. Select an Epic
3. Open Details Pane
4. Select Show More and choose Epic Planning
5. In the add "Capabilities to Epic" section, search for a Capability and select Add button
6. Close out of window when completed.

Expected Results

Due to the permissions being set on Capability & Epics to a view-only setting, the expectation is that no action would be able to be taken.

Actual Results

New Capability has now been added to Epic

Workaround

None.

Notes:

Same behaviour also occurs in the CapabilitiesGrid
Permission set Features & Capabilities View-Only

1. Select a Capabilitiy
2. Open Details Pane
3. Select Show More and choose Capability Planning
4. In the add "Features to Capability" section, search for a Featureand select Add button