Cannot 'edit details' of file (UploadField > file selection modal)

[micschk]

When I open an existing file/image from an UploadField, the 'edit details' button is missing (eg to edit the file's title).
Only when I unselect the file and select it again, the button appears.

From an UploadField, on an existing file I click the 'view/eye' icon:

A popup/modal appears with the selected file in view-mode, with only an 'unselect' action available:

Instead, I should be able to edit the details of the currently selected file as well:

[brynwhyman]

Somewhat related to silverstripe/silverstripe-asset-admin#1136 which also involves undesired behaviour of the Details button