This makes us look up the user information of a module that is selected
in the module loader. If that user does not have the developer role
on the project, warn the user before loading.

Related to #10705

When we fail to load a memory we show the row label in red to indicate
this fact but do not allow an edit (or other edit operations that may
include these) because we don't have a cached memory object. This
patch makes us store an empty memory there so that an edit can
proceed, likely to resolve the issue by starting fresh.

Fixes #10705

The CA RadioReference button was hijacking wx.ID_OK, preventing us
from finding and disabling the right button while a query was going
on. This fixes that by assigning it an ID of its own. Also disable
the OK button during CA login for clarity.

Fixes: #10704