Mobile column chooser has issues when the first column is pinned or excluded from chooser

[febbraiod]

Goal is to pinned the 'name' column by default, and not allow it to be removed from the grid. This is buggy in a client app in two different states:

1. First column is excluded from the chooser a) It cannot be pinned by default in the application code, the chooser will undo this. b)The chooser will allow the user to pin the "first" column (not really the first column, but rather the first column in the chooser). The pinning executes but the next time the chooser is opened the "pin first column" control appears to be false even though there is a pinned column present. I think this is because the actual first column is the excluded one.
2. Column is not excluded from chooser. a) I see this column getting the "locked" icon even though it is not marked as hideable: false b) The column can be pinned by default, but can also be unpinned and moved from it's first position.

@TomTirapani let's look together in the app